Hydrapak UltraFlask Speed 500ml Other Small Parts For years this sock has

For years this sock has been the go-to sock for serious hikers who know the difference their socks can make day after day after day of hard hiking

Use only one zipper for quick reach-through access

our most durable waterproof snowsports shell handles all-mountain variability with ease

Introducing our highest capacity storage yet

Hydrapak UltraFlask Speed 500ml Other Small Parts For years this sock hasThe perfect balance of sleek and stable, our signature UltraFlask has a wider form and a durable 3D welded bottom. Soft and pliable material means you can fit it in most pack and larger vest pockets for a snug and secure fit. Topped with our SpeedFill Cap for quick refills. Capacity 500 ml 17 fl oz Weight 42 g 1. 4 oz Dimensions 240 mm x 55 mm 9. 4 in x 2. 2 in Material TPU, PP, Silicone, POM, 304SS