Designed to be worn underneath shorts, our multi-award-winning North Shore Bike Liner features BN3TH's first-of-its-kind patent-pending MTB-specific (Sea-to-Sky) STS Pad™ and The Original 3D Pouch to ensure everything is separated and secure. Plus, the permanent silver Ionic+® anti-odor technology kills stink before it starts. Fabric: 78% Polyester 14% Spandex 8% Ionic+® Polyester