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.
Hydration on the go just got easier with the leakproof, insulated Flex Straw Cap. Add it to your favorite Standard Mouth Hydro Flask bottle to easily enjoy cold hydration anywhere.
Features:
•Leakproof when closed
•Straw is easy to trim to fit your favorite Hydro Flask
•Flex Strap is easy to transport and comfortable to carry
•Insulated for maximum temperature retention
•Removable components for easy cleaning
•BPA-Free
•Dishwasher safe
•Not intended for use with hot liquids
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
