This site contains affiliate links for which we may be compensated.
STYRKR Soft Water Bottle Running Flask$12.99
For those that want to venture further, faster, off the beaten track. Optimise your Styrkr mix drinks with this 500ml soft flask which can be stowed neatly in a running vest or belt, ready to give you energy when you need it most. Compresses as you drink to save space Wide neck for compatibility with drink mixes and electrolytes.