SERIOUS STORAGE

SERIOUS STORAGE

Expand the capacity of your BlenderBottle® ProStak® system. Extra 100cc and 150cc jars double the initial capacity of your system, while the massive 250cc jar offers ample room for even the largest protein, meal replacement, and on-the-go nutrition needs.

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Chain Links, Durable

STAY SECURE

Built to take a beating, the Expansion Pak jars keep contents in place and your gym bag clean.

Twist N' Lock

TWIST N' LOCK TECHNOLOGY

Inspired by the GoStak® container system, Expansion Pak jars can be connected to each other with a quick twist for added portability.

GO BIG

The massive 250cc jar makes room for even the largest nutritional supplements, chopped fruits, and more.

BlenderBottle - PROSTAK COMPATIBLE

PROSTAK COMPATIBLE

Quickly attach Expansion Pak jars to the bottom of the ProStak shaker cup thanks to the unique Twist n’ Lock™ system.

BlenderBottle - DITCH THE PILL MINDER

DITCH THE PILL MINDER

Take vitamins on the go, without using an entire jar. The unique pill tray locks into any jar lid, making room for both pills & powder in the same jar.

BlenderBottle - TAKE ONLY WHAT YOU NEED

TAKE ONLY WHAT YOU NEED

The Expansion Pak jars are designed to be sleek & compact, giving you just enough room for your supplements, without invading your gym bag.

PROSTAK EXPANSION PAK

$ 8.99
  • Durable, BPA- and Phthalate-free jars
  • Twist n' Lock™ pill tray locks into any jar lid
  • Extra-large 250cc jar
  • 150cc jar
  • 100cc jar
  • Compatible with any ProStak™ shaker cup