Double click image to zoom in
Our on-line store is open 24/7 and we ship Monday through Friday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 12:00 p.m. PST. Orders in high demand will have an estimated production time listed on its product page and will ship according to the date listed.
When pierced, the highly-polymerized material of the tube will create an air-tight seal around the object and prevent an immediate puncture which fully gives the riders more time to react.
FOSS tube provides a superior ride quality due to high elasticity of the material which can actually reduce the rolling resistance.
The material density is 0.88 g/cc. It is 30% lighter than traditional tubes (of the same thickness).
And it is a recycled Environmentally Friendly material.
We are a Seattle, WA based outdoor gear store with a mission to make climbing, backpacking, skiing & mountaineering accessible and enjoyable for everyone.
© 2026, Master Store
