Reforce Stainless Steel, Friday the 13th
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🔪 Officially Licensed Friday the 13th Stainless Steel Shaker Bottles! 🔪
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 designÂ
Keep using it for a decade or more.
Leak-proofÂ
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 cleanÂ
Wide opening for simple cleaning (handwash only).
This is a single wall steel bottle. Do not use with hot liquids.
The Silent Mixing Solution
Our shaker bottles feature a smart mixing net that seamlessly snaps into the lid, ensuring a tight and secure fit with no rattling or loose parts. With this innovative feature, you can mix your drinks with confidence, knowing that every blend will be perfectly smooth and consistent.
The Silent Mixing Solution
Our shaker bottles feature a smart mixing net that seamlessly snaps into the lid, ensuring a tight and secure fit with no rattling or loose parts. With this innovative feature, you can mix your drinks with confidence, knowing that every blend will be perfectly smooth and consistent.
