Fuel your workouts with fear! This haunting shaker features the iconic Friday the 13th mask—because nothing says power like a little Jason Voorhees. Are you brave enough to take it to the gym?
Battle-tested More than 25 million happy customers since 2009.
Durable design Keep using it for a decade or more.
Leak-proof 100% guaranteed by our Smartshake ™ Warranty.
Comfortable & lightweight Weighs only 170Â grams / 0.375 lbs.
Engraved measurement Units of measure engraved on the inside of the bottle
Practical & easy to clean Wide opening for simple cleaning (handwash only).
This is a single wall steel bottle. Do not use with hot liquids.
