Hydrapak UltraFlask Speed (500ml)

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 Hydrapak's SpeedFill Cap for quick refills.

Constructed using a soft material, the UltraFlask Speed conforms to most hydration packs and larger vest pockets for a secure and stable fit. The easy-to-drink bite valve auto-seals after each sip to eliminate annoying drips causing distractions. Its SpeedFill cap with 42mm wide opening allows for quick and easy filling for fast refills - even when adding ice or drink mixes. The lid can then be snapped closed easily for leakproof transport. The UltraFlask can also be paired with 42mm threaded backcountry water filters, including the HydraPak 42mm Filter Cap, while its flexible design shrinks as you drink to minimise water movement. This design also allows you to pack down the flask and fit it into a pocket when empty. Thanks to its wide working temperature range, the flask can be frozen and exposed to a max temperature of 60°C. Made from ultra-durable, abrasion-resistant TPU and featuring RF welded seams, the UltraFlask Speed ensures superior durability and elasticity for long-lasting use.