Baleaf Men's 3D Padded Cycling Bike Shorts UPF 50+ Size M 80% Nylon/20% Spandex/UPF 50+ UPF 50+ fabrication protects your skin during outdoor activity by blocking harmful Ultraviolet rays. Transfer fabric sets the benchmark for moisture transfer and four-way performance stretch, compression design improves circulation and provide muscle support to reduce fatigue. Anatomic 3D Chamois is male-specific and non-chafing with padding in key areas, moisture-wicking, and antimicrobial properties, provides miles and miles of comfort Reflective elements on the sides of the shorts to improve safety in night riding or low-sight condition Wide elastic waistband is reinforced for a more secure, comfortable fit.Size chart: S=30.5-32.5" M=33-34.5" L=35-36.5" XL=37-39.5" XXL=40-42.5"