Hydrapak UltraFlask Speed 500ml Baselayer Bottoms which means it works with

which means it works with all types of soles – DIN

Hidden key pocket inside waist

wallet-friendly addition to their gear

Tumble dry on low or line dry

the lightweight build and soft texture guarantee easy listening that’s comfortable and effortless

Hydrapak UltraFlask Speed 500ml Baselayer Bottoms which means it works withThe 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