"STIFFY" Back Plate kettlebell bag Start building skills

Start building skills

0 – rugged

or just want to level up your workouts

This isn't just a book—it's a movement to shift from dependency to capability

everywhere you go

"STIFFY" Back Plate kettlebell bag Start building skillsYou asked, and we delivered. Some of our customers recommended an upgrade option for the backplate of the kettlebell backpack to provide a "stiffer" backside of the backpack. So we did it. Our backpacks already come with their standard backplates like always, but they are definitely flimsier in comparison to the "STIFFY." At 3 16" thick and barely bendable, this backplate provides a substantial improvement in the "stiffness" of the backpack's backside.