Hydrapak Ultraflask+ Filter Cap crampon slots making it ideal for any

making it ideal for any situation

so it can be adjusted to each foot individually

Top cover: Polyester mesh

Reflective headband for 360-degree visibility

Guide/Yak hood

Hydrapak Ultraflask+ Filter Cap crampon slots making it ideal for anyRun fast, filter faster. The UltraFlask+ Filter Cap threads seamless onto all of HydraPaks 42mm running flasks and handhelds for a lightweight, straightforward filtration solution. Featuring a traditional bite valve and cap design, runners can drink freshly filtered water directly through the high flow Blaster valve. Specifications FAST & SAFE FILTRATION The integrated filter removes Escherichia coli bacteria, Cryptosporidium parvum cysts, and Giardia