This fully padded 3.5 waist belt allows you to Rotate or Lock Modular, Skin, and Multimedia components for even weight distribution HALF WAY around the belt on special rails. Especially designed for use with lots of gear and the Pixel Racing Harness (sold separately). Medium-Large size: 32 42 (81 - 106 cm) based on actual waist measurement. Note: pants sizes can vary 2-5 inches smaller than true waist measurements. For the most accurate results, please measure your waist with a tape measure.