Best in 7 days
Pay in installments of $7.16 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Oct 9 - Oct 14
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
FLASS CAP FOR 350ML & 400MLThis dual coloured replacement Flass cap fits BROS Flass 350ml and 450ml perfectly. It comes with a steel filter to keep tea bags or ice cubes away from your mouth while sipping your favourite beverage. This cap fits: BROS Flass 350ml & 400ml
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
Discover Niche Categories That Outsell
Top-Converting Item to Boost Your Average Order
Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.5 ★★★★★
Based on 2249 reviews
Sort
Product Reviews
★★★★★ 5
Worth it
Style: Tech Pack 28 sqft
Excellent sound deadening for my tundra doors. Expensive, but worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
Heat and sound deterrent.
Style: Tech Pack 28 sqft
My husband likes this stuff for his older cars. Helps with heat from engine and sound.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
★★★★★ 5
Sound Barrier
Style: Tech Pack 28 sqft
Easy to install and work with
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
★★★★★ 5
Good buy.
Style: Tech Pack 28 sqft
Perfect amount for small suv. Easy to install once panels are off. Great product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
★★★★★ 5
Passively quiet your cars interior!
Style: Tech Pack 28 sqft
This stuff is the industry standard! Does exactly what it is supposed to.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 29, 2025
![Golos, Tireless Pilgrim [Core Set 2020 Prerelease Promos]](https://cdn.shopify.com/s/files/1/0575/8700/7676/products/1a66e5c1-7041-5a34-a713-eaef7f885db6_07dab078-477b-498a-a6d0-feb5f65614d5.jpg?v=1629900496)