These G-Form Elite liner shorts are like secret body armor for mountain bikers. They're designed to be worn under your regular baggy MTB shorts. The big deal is the protection: they feature G-Form's SmartFlex padding on the hips, which is certified to motorcycle-level impact standards. It feels soft and flexible while you're riding, but the moment you take a hard hit, the material instantly hardens to absorb and dissipate the shock. That means you get protection without the bulk of hard plastic pads. They also have a quality, multi-density chamois (that's the seat pad) that's designed for over 4 hours of comfort to prevent chafing on long rides. The fabric is moisture-wicking, has UPF 50+ sun protection, and is breathable. There's a handy side pocket on the leg for a key or gel, and a 2-inch elastic gripper at the leg to keep them in place. If you want serious trail protection that you barely notice until you need it, these liner shorts are a game-changer.