Fringe Sport

The Booty Box

With its unique rectangular design featuring a central gap, the Booty Box helps you get a deeper range of motion on squats, lunges, and deadlifts, targeting all the right muscles to boost your booty growth. Plus, it has a built-in slant board feature that is specifically designed to improve lower body strength, mobility, and joint health by allowing your knees to move safely beyond your toes—a technique known to activate and strengthen the muscles in the quads, calves, and glutes more effectively. The Booty Box features a sturdy, ergonomically designed back post that’s perfect for performing glute bridges—one of the most effective exercises for targeting and growing the glute muscles. Whether you’re using bodyweight, resistance bands, or a loaded barbell, the back post keeps you stable and supported, so you can feel the burn where it counts. Glute bridges are a powerhouse exercise for building a big, round, and lifted booty because they isolate the glutes, the largest muscle in the butt, while also engaging the hamstrings and core.