Platypus Big Zip SL Hydration System 2.0L Traditional  Built-in advanced power management

  Built-in advanced power management circuit

What is a drop point blade

it stays ergonomic in the hand for long periods of time

This particular variant is discontinued

Professional optical lens design

Platypus Big Zip SL Hydration System 2.0L Traditional  Built-in advanced power managementThe Big Zip SL reservoir is the most finely tuned hydration reservoir made. Nothing makes staying hydrated easier and, at the end of the day, that means a better day. Proprietary dual layer film features a rugged exterior and a BPA and taste free lining. Wide, BigZip opening swallows drink mixes and ice cubes easily and makes filling, cleaning and drying a snap. Secure SlideLock closure with carry handle ensures an easy, leak free seal All natural