Hydrapak Soft Flask – Ultraflask Speed 500ml

– VEST PACK FIT: Soft material conforms to most hydration packs and larger vest pockets for a secure and stable fit.
– HIGH-FLOW: Easy to drink bite valve auto-seals after each sip, eliminating annoying drips.
– SPEEDFILL CAP: Designed for fast filling – flips open for quick refills and snaps closed for leakproof transport.
– LARGE OPENING: 42mm opening lets you fill the flask easily with ice and drink mixes.
– COMPRESSIBLE: Flexible design shrinks as you drink, reducing water movement.
– FILTER COMPATIBLE: Pair with 42mm threaded backcountry water filters including the HydraPak 42mm Filter Cap.
– DURABLE: Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity.
– 100% BPA & PVC FREE: Wide working temperature range (can be frozen – max temp 60° C / 140° F).