UltrAspire 800 mL Softflask w/ Locking Cap gear Offers excellent protection from the

Offers excellent protection from the sun

and less than a third of men wear sunscreen

Injection molded EVA outsole

the Aerotrek 20 hiking pack fits everything you need for a full day of exploring

High loads can be carried best when the carrier and the backpack operate as a single entity

UltrAspire 800 mL Softflask w/ Locking Cap gear Offers excellent protection from theThis collapsible SoftFlask carries 800mL of fluid. The unique shape allows this SoftFlask to slide easily in and out of a hydration pocket. Comes with a larger diameter top to fit ice cubes and keep fluids cool. Features a silicone Sheath Bite Valve on a Locking 42mm cap. Flask size 12x4 1 2