For Your Tumbler. For Every Day.

  • Fits Many 30–40oz Tumbler Straws
  • Designed for a Secure Fit
  • Helps Cover the Straw Opening
  • Stylish • Durable • Reusable

Magnetic Silicone Straw Cover Caps for 40oz Tumblers – Leak Proof Straw Protectors

$7.99 $9.99 $2.00
Close-up of a black silicone magnetic straw cover cap, designed for 40oz tumbler straws to help protect drinks from dust, spills, and debris. Cream insulated 40oz tumbler with reusable magnetic silicone straw cover attached to a clear tumbler straw, shown alongside black and white straw topper caps with magnetic attachment for dust proof hygienic drinking and 10mm–12mm straw compatibility. Pearl white and black magnetic silicone straw cover caps shown on clear reusable straws above a white TickTrend handled tumbler with a transparent background. Pearl white magnetic silicone straw cover cap attached to a reusable straw on a 40oz tumbler, helping protect drinks from dust, spills, and debris. Magnetic silicone straw cover caps for 40oz tumblers in pearl white and black. Spill-proof reusable food-grade silicone straw protectors fit 10mm–12mm straws, feature a strong magnetic closure, and help keep drinks protected from spills, dust, debris, and germs during travel and everyday use. Black stainless steel tumbler with angled reusable straw and magnetic silicone straw topper hovering above the opening, demonstrating leak resistant straw protection and magnetic attachment for 10mm–12mm tumbler straws during travel and everyday use. Travel mug lid featuring a magnetic silicone straw lid cover in pearl white and black, shown on reusable straws and above a tumbler lid to illustrate splash proof straw protection, strong magnetic attachment, and compatibility with 10mm–12mm drinkware straws. Close-up product display of pearl white and black magnetic silicone straw toppers, including internal magnet components and a clear reusable straw, showcasing washable food grade silicone construction, dustproof straw cover design, and fit for 10mm–12mm water bottle and tumbler straws. Magnetic silicone straw cover caps for 40oz tumblers in pearl white and black, featuring leak-proof magnetic closure, reusable food-grade silicone construction, and dust, spill, and germ protection for insulated travel tumblers with reusable straws. Magnetic silicone straw cover cap for 40oz tumblers showing spill prevention, dust protection, hygiene benefits, strong magnetic closure, and 10mm–12mm straw compatibility for reusable insulated travel tumblers. 40oz insulated stainless steel travel tumbler with handle and leak-resistant straw lid shown for hiking, road trips, gym workouts, office use, and everyday travel. BPA-free double-wall vacuum insulated tumbler keeps drinks hot or cold while on the go. Magnetic silicone straw cover cap for 40oz tumblers showing dust, debris, and insect protection. Reusable food-grade silicone straw protector keeps drinking straws clean and covered with a secure magnetic closure, fitting most 30–40 oz tumblers with 10mm–12mm straws. Magnetic silicone straw cover cap size guide showing compatibility with 10mm, 11mm, and 12mm reusable straws. Leak-proof magnetic straw protector for 40oz tumblers helps prevent spills and keeps straws clean from dust, debris, insects, and germs during travel and everyday use. Universal-fit magnetic silicone straw cover caps displayed on multiple popular 40oz tumblers and reusable drinkware styles. Food-grade magnetic straw toppers fit 10mm–12mm straws, helping protect beverages from dust, insects, debris, and germs while providing a secure, reusable solution for travel, work, commuting, outdoor activities, and everyday hydration. Auto-align magnetic silicone straw cover cap demonstrating instant snap-on closure and secure hold for 40oz tumbler straws. Reusable food-grade straw protector fits 10mm–12mm straws, helping reduce spills while shielding drinking surfaces from dust, insects, debris, and everyday contaminants for cleaner hydration on the go. Black silicone magnetic straw topper installed on a 40oz insulated handled tumbler, showing a clean low-profile fit on a reusable drinking straw. Food-grade magnetic straw cover helps shield the straw opening from dust, debris, insects, and everyday contaminants while supporting spill-resistant travel, office, commuting, and outdoor use. Magnetic silicone straw cover cap size guide showing compatibility with 10mm, 11mm, and 12mm reusable straws. Leak-proof magnetic straw protector for 40oz tumblers helps prevent spills and keeps straws clean from dust, debris, insects, and germs during travel and everyday use. Close-up of a pearl white magnetic silicone straw cover cap for a reusable tumbler straw on a transparent background.
Close-up of a black silicone magnetic straw cover cap, designed for 40oz tumbler straws to help protect drinks from dust, spills, and debris.
Cream insulated 40oz tumbler with reusable magnetic silicone straw cover attached to a clear tumbler straw, shown alongside black and white straw topper caps with magnetic attachment for dust proof hygienic drinking and 10mm–12mm straw compatibility.
Pearl white and black magnetic silicone straw cover caps shown on clear reusable straws above a white TickTrend handled tumbler with a transparent background.
Pearl white magnetic silicone straw cover cap attached to a reusable straw on a 40oz tumbler, helping protect drinks from dust, spills, and debris.
Magnetic silicone straw cover caps for 40oz tumblers in pearl white and black. Spill-proof reusable food-grade silicone straw protectors fit 10mm–12mm straws, feature a strong magnetic closure, and help keep drinks protected from spills, dust, debris, and germs during travel and everyday use.
Black stainless steel tumbler with angled reusable straw and magnetic silicone straw topper hovering above the opening, demonstrating leak resistant straw protection and magnetic attachment for 10mm–12mm tumbler straws during travel and everyday use.
Travel mug lid featuring a magnetic silicone straw lid cover in pearl white and black, shown on reusable straws and above a tumbler lid to illustrate splash proof straw protection, strong magnetic attachment, and compatibility with 10mm–12mm drinkware straws.
Close-up product display of pearl white and black magnetic silicone straw toppers, including internal magnet components and a clear reusable straw, showcasing washable food grade silicone construction, dustproof straw cover design, and fit for 10mm–12mm water bottle and tumbler straws.
Magnetic silicone straw cover caps for 40oz tumblers in pearl white and black, featuring leak-proof magnetic closure, reusable food-grade silicone construction, and dust, spill, and germ protection for insulated travel tumblers with reusable straws.
Magnetic silicone straw cover cap for 40oz tumblers showing spill prevention, dust protection, hygiene benefits, strong magnetic closure, and 10mm–12mm straw compatibility for reusable insulated travel tumblers.
40oz insulated stainless steel travel tumbler with handle and leak-resistant straw lid shown for hiking, road trips, gym workouts, office use, and everyday travel. BPA-free double-wall vacuum insulated tumbler keeps drinks hot or cold while on the go.
Magnetic silicone straw cover cap for 40oz tumblers showing dust, debris, and insect protection. Reusable food-grade silicone straw protector keeps drinking straws clean and covered with a secure magnetic closure, fitting most 30–40 oz tumblers with 10mm–12mm straws.
Magnetic silicone straw cover cap size guide showing compatibility with 10mm, 11mm, and 12mm reusable straws. Leak-proof magnetic straw protector for 40oz tumblers helps prevent spills and keeps straws clean from dust, debris, insects, and germs during travel and everyday use.
Universal-fit magnetic silicone straw cover caps displayed on multiple popular 40oz tumblers and reusable drinkware styles. Food-grade magnetic straw toppers fit 10mm–12mm straws, helping protect beverages from dust, insects, debris, and germs while providing a secure, reusable solution for travel, work, commuting, outdoor activities, and everyday hydration.
Auto-align magnetic silicone straw cover cap demonstrating instant snap-on closure and secure hold for 40oz tumbler straws. Reusable food-grade straw protector fits 10mm–12mm straws, helping reduce spills while shielding drinking surfaces from dust, insects, debris, and everyday contaminants for cleaner hydration on the go.
Black silicone magnetic straw topper installed on a 40oz insulated handled tumbler, showing a clean low-profile fit on a reusable drinking straw. Food-grade magnetic straw cover helps shield the straw opening from dust, debris, insects, and everyday contaminants while supporting spill-resistant travel, office, commuting, and outdoor use.
Magnetic silicone straw cover cap size guide showing compatibility with 10mm, 11mm, and 12mm reusable straws. Leak-proof magnetic straw protector for 40oz tumblers helps prevent spills and keeps straws clean from dust, debris, insects, and germs during travel and everyday use.
Close-up of a pearl white magnetic silicone straw cover cap for a reusable tumbler straw on a transparent background.

Magnetic Silicone Straw Cover Caps for 40oz Tumblers – Leak Proof Straw Protectors

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$7.99 $9.99 $2.00
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Straw caps & tumblers that pair well

Complete the set

TickTrend 40oz Insulated Tumbler with Handle and Straw Lid
$10.00 sale
TickTrend 40oz Insulated Tumbler with Handle and Straw Lid TickTrend 40oz Insulated Tumbler with Handle and Straw Lid
TickTrend 40oz Insulated Tumbler with Handle and Straw Lid ™ $14.99 $24.99
🔥 Why You’ll Love It Stay hydrated all day with the TickTrend 40oz Insulated Tumbler, designed for daily use at home, work, the gym, in the car, or on the go. 40oz Large Capacity – Enjoy fewer refills throughout the day while keeping your favorite drink close by Double-Wall Vacuum Insulation – Helps keep cold drinks cold for hours and hot drinks warm longer Comfortable Ergonomic Handle – Easy to carry with a secure, comfortable grip for commuting, travel, workouts, and everyday use Spill-Resistant Straw Lid – Includes a reusable straw and secure lid for convenient sipping throughout the day Cup Holder Friendly Base – Tapered design fits most standard vehicle cup holders Durable Stainless Steel Build – Made for repeated daily use, travel, errands, office days, and outdoor activities 📦 Product Details Capacity: 40oz Material: Stainless steel Insulation: Double-wall vacuum insulated Lid Type: Spill-resistant straw lid with reusable straw Handle: Ergonomic comfort-grip handle Base: Tapered cup-holder friendly design Best For: Travel, office, gym, commuting, outdoor activities, and everyday hydration 🎁 Your Everyday Hydration Companion Whether you are heading to work, running errands, traveling, or spending time outdoors, the TickTrend 40oz Insulated Tumbler helps keep your drinks at the right temperature while making hydration easier throughout the day. ⚡ Order While Available Inventory may vary by color. Order today while your preferred color is available.
40oz Insulated Travel Tumbler with Handle & Straw Lid — Cream 40oz Insulated Travel Tumbler with Handle & Straw Lid — Cream 40oz Insulated Travel Tumbler with Handle & Straw Lid — Black 40oz Insulated Travel Tumbler with Handle & Straw Lid — Black 40oz Insulated Travel Tumbler with Handle & Straw Lid — Blue 40oz Insulated Travel Tumbler with Handle & Straw Lid — Blue 40oz Insulated Travel Tumbler with Handle & Straw Lid — Green 40oz Insulated Travel Tumbler with Handle & Straw Lid — Green
40oz Insulated Travel Tumbler with Handle & Straw Lid ™ $24.99
🔥 Why You’ll Love It 40oz Large Capacity – Stay hydrated longer with fewer refills throughout the day Double-Wall Vacuum Insulation – Keeps drinks cold for hours and helps maintain hot beverages longer Comfortable Ergonomic Handle – Designed for a secure and comfortable grip at home, work, the gym, or on the go Spill-Resistant Straw Lid – Features a reusable straw and secure lid for convenient everyday use Cup Holder Friendly Design – Tapered base fits most standard vehicle cup holders Built for Everyday Use – Durable stainless steel construction designed for travel, commuting, workouts, and daily hydration 📦 Product Details Capacity: 40oz Material: Premium stainless steel Insulation: Double-wall vacuum insulated Lid Type: Spill-resistant straw lid Handle: Ergonomic comfort-grip handle Fits: Most standard vehicle cup holders Ideal For: Travel, office, gym, commuting, outdoor activities, and everyday hydration 🎁 The Perfect Everyday Companion Whether you are heading to work, running errands, traveling, or spending time outdoors, this 40oz insulated tumbler helps keep your favorite drinks at the ideal temperature while providing all-day hydration wherever life takes you. ⚡ Limited Availability Inventory is limited and popular colors may sell out quickly. Order today while your preferred color is still available.

Pair these straw caps with a 40oz insulated tumbler

Shop TickTrend tumblers that work with magnetic straw cover caps.

Straw Caps 40oz Tumblers FAQ

TickTrend 40oz Insulated Tumbler with Handle and Straw Lid
$10.00 sale
TickTrend 40oz Insulated Tumbler with Handle and Straw Lid TickTrend 40oz Insulated Tumbler with Handle and Straw Lid
TickTrend 40oz Insulated Tumbler with Handle and Straw Lid ™ $14.99 $24.99
🔥 Why You’ll Love It Stay hydrated all day with the TickTrend 40oz Insulated Tumbler, designed for daily use at home, work, the gym, in the car, or on the go. 40oz Large Capacity – Enjoy fewer refills throughout the day while keeping your favorite drink close by Double-Wall Vacuum Insulation – Helps keep cold drinks cold for hours and hot drinks warm longer Comfortable Ergonomic Handle – Easy to carry with a secure, comfortable grip for commuting, travel, workouts, and everyday use Spill-Resistant Straw Lid – Includes a reusable straw and secure lid for convenient sipping throughout the day Cup Holder Friendly Base – Tapered design fits most standard vehicle cup holders Durable Stainless Steel Build – Made for repeated daily use, travel, errands, office days, and outdoor activities 📦 Product Details Capacity: 40oz Material: Stainless steel Insulation: Double-wall vacuum insulated Lid Type: Spill-resistant straw lid with reusable straw Handle: Ergonomic comfort-grip handle Base: Tapered cup-holder friendly design Best For: Travel, office, gym, commuting, outdoor activities, and everyday hydration 🎁 Your Everyday Hydration Companion Whether you are heading to work, running errands, traveling, or spending time outdoors, the TickTrend 40oz Insulated Tumbler helps keep your drinks at the right temperature while making hydration easier throughout the day. ⚡ Order While Available Inventory may vary by color. Order today while your preferred color is available.
40oz Insulated Travel Tumbler with Handle & Straw Lid — Cream 40oz Insulated Travel Tumbler with Handle & Straw Lid — Cream 40oz Insulated Travel Tumbler with Handle & Straw Lid — Black 40oz Insulated Travel Tumbler with Handle & Straw Lid — Black 40oz Insulated Travel Tumbler with Handle & Straw Lid — Blue 40oz Insulated Travel Tumbler with Handle & Straw Lid — Blue 40oz Insulated Travel Tumbler with Handle & Straw Lid — Green 40oz Insulated Travel Tumbler with Handle & Straw Lid — Green
40oz Insulated Travel Tumbler with Handle & Straw Lid ™ $24.99
🔥 Why You’ll Love It 40oz Large Capacity – Stay hydrated longer with fewer refills throughout the day Double-Wall Vacuum Insulation – Keeps drinks cold for hours and helps maintain hot beverages longer Comfortable Ergonomic Handle – Designed for a secure and comfortable grip at home, work, the gym, or on the go Spill-Resistant Straw Lid – Features a reusable straw and secure lid for convenient everyday use Cup Holder Friendly Design – Tapered base fits most standard vehicle cup holders Built for Everyday Use – Durable stainless steel construction designed for travel, commuting, workouts, and daily hydration 📦 Product Details Capacity: 40oz Material: Premium stainless steel Insulation: Double-wall vacuum insulated Lid Type: Spill-resistant straw lid Handle: Ergonomic comfort-grip handle Fits: Most standard vehicle cup holders Ideal For: Travel, office, gym, commuting, outdoor activities, and everyday hydration 🎁 The Perfect Everyday Companion Whether you are heading to work, running errands, traveling, or spending time outdoors, this 40oz insulated tumbler helps keep your favorite drinks at the ideal temperature while providing all-day hydration wherever life takes you. ⚡ Limited Availability Inventory is limited and popular colors may sell out quickly. Order today while your preferred color is still available.
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Frequently asked questions

Magnetic straw cover caps help protect the straw opening from dust and everyday debris. Designed to fit many reusable straws within about a 10mm–12mm outside diameter range on 40oz handled tumblers.

What size straw cover fits a 40oz tumbler?

TickTrend caps are designed to fit many reusable straws within about a 10mm–12mm outside diameter range on 30–40oz tumblers. Measure your straw before ordering.

How should I clean magnetic straw covers?

Wash regularly according to the care instructions provided with the product.

How do magnetic straw caps work?

A flexible silicone cap sits over your straw opening and uses magnets to help stay in place. Flip it open when you want to drink.

Do straw covers help with dust and minor spills?

They help protect the straw opening from dust and everyday debris and can help reduce minor splashes when your tumbler tips. They are not a guarantee against leaks or spills.

What straw size do TickTrend covers fit?

TickTrend magnetic straw cover caps are designed to fit many reusable straws within about a 10mm–12mm outside diameter range, commonly used on 30–40oz tumblers. Compatibility depends on your straw’s outside diameter and shape—measure your straw before ordering.

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1 Pack
$7.99
2 Pack
$15.98
3 Pack
$23.97

Unit price $7.99 · Pack total = unit price × quantity

📦 U.S. shipping available
↩️ 30-day return policy
🔒 Secure Checkout
🔄 See Refund Policy for exchanges

Designed for many reusable tumbler straws

Compatibility depends on your straw’s outside diameter and shape. Measure your straw before ordering.