At 600ml, this is the largest of the Ultraflask family, but it's small enough to fit in most hydration vest pockets. The beauty of a soft-bottle – once empty it compacts to a fraction of its full size.
- Removable drink tube can be cut to length
- Fits in most hydration vest, belt or pack pockets
- Body is 0.4mm BPA-free thermoplastic polyurethane with a nice, grippy feel
- Cap configurations: high-flow, silicone bite valve mounted directly to the cap or with the strap in between
- RF welded to create superior bonds
- 42mm opening is easy to fill, clean, or add drink mix
- Can be frozen or filled with warm water (max temp 140°F / 60°C)
