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.
Stay Secure
Built to take a beating, the Expansion Pak jars keep contents in place and your gym bag clean.
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.
ProStak Compatible
Quickly attach Expansion Pak jars to the bottom of the ProStak shaker cup thanks to the unique Twist n’ Lock™ system.
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.
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.
More Product Details
- 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