Slim, lightweight inner shorts with great fit, excellent moisture transport and C4 pad to be worn underneath your loose-fit bike shorts.- Ergonomic fit for total freedom of movement- Designed to keep you cool while riding. Lightweight, micro polyester with a 6-channel fiber construction that effectively pulls perspiration vapor off the body to keep you cool.- Excellent moisture transport- Ergonomic design for a perfect riding-position fit- Soft, elastic leg ending with silicone logo- Comfortable bike shorts to be worn underneath your loose-fit shorts or when you need a bit of extra padding under your normal bike shorts or pants- Infinity C4 Pad