Hydrapak UltraFlask™ Speed 500ml 2026 Pro The “U” spring is shaped

The “U” spring is shaped out from titanium to assure estreme lightness combined with resistance

The main material is a ripstop

Its elastic modulus is softer for a smoother ride

Yarn in upper contains at least 50% Parley Ocean Plastic and 50% recycled polyester

The ultimate height for keeping the outside—out

Hydrapak UltraFlask™ Speed 500ml 2026 Pro The “U” spring is shaped### Hydrapak Says ### The 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