The fold-able and malleable design makes these bottles easy to stash in a big pocket or backpack.
- Big bite valve self-seals after each drink, eliminating annoying drips
- Large mouth opening allows you to fill the flask easily with ice and drink mixes
- Empty flask collapses and folds ultra-compact to fit in most pockets
- All parts top-rack dishwasher safe
- Volume indicators in ounces and milliliters for tracking hydration and adding electrolytes
- Hang flask upside down for easy drainage and drying