Platypus Big Zip SL

Stay hydrated more easily with the Big Zip hydration system.  The unique wide-mouth opening makes filling, cleaning and drying a breeze, and allows for easy adding of drink mixes or ice cubes.  The secure closure with carry handles means an easy, leak-free seal every time.


  • 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 SlimeGuard™ antimicrobial treatment helps keep it clean and taste-free.
  • Quick-Disconnect drink tube lets you leave hoses routed in packs for easy filling.
  • Ergonomic 90-degree shutoff valve for easy drinking.
  • HyperFlow™ bite valve features two-piece construction for easy cleaning.


  2.0 LTR 3.0 LTR
Capacity 70 fl. oz / 2 liters 100 fl. oz / 3 liters
Weight 5.5 oz / 157 g 5.8 oz / 165 g
Width 7 in / 18 cm 7.75 in / 19.5 cm
Length 18.5 in / 47 cm 18.75 in / 47.5 cm