Your secret weapon for Smarter, Stronger Training. Step into the future of form by naturally building the protection of your lower body. The Tighties Challenger offers more than just support- the Challenger introduces controls malalignment to specifically activate your core and lower body muscles through targeted resistance. This unique system works against your postural state, anchoring your core to align your hips and spine to build the foundation for proper form and posture that lasts far beyond when you take them off. Crafted from a breathable yet robust Repreve® compression, these leggings keep you cool with their sweat wicking technology. Tighties Strapping System ™ powered by BOA ® Fit Dials delivers micro-adjustable muscle activation Build Your Form Posture Training Joint Support Increased blood flow