Men's Cycling Shorts 3D Padded with Pockets 80% Nylon, 20% Spandex. The cycling shorts padded for men is made of stretchy, durable, breathable and moisture-wicking fabric, offering you great comfort, especially suitable for sensitive skin. Previous page Large Capacity Two big side pockets can hold 5.5" mobile phone or other personal belongings for great convenience Fits Well Wide and flexible waistband offers great comfort, flat lock stitching helps reduce chafing High Compressibility Silicone leg gripper holds the bike shorts in position, compressed fabric helps you ride faster Improve Security Reflective elements on the back of the thighs and pockets improve visibility in low light conditions Next page All The Details Are Designed For Better Riding 1 SIDE POCKETS 2 HIGH STRETCHY 3 SILICONE GRIPPER 4 REFLECTIVE ELEMENTS 3D Chamois for 10-20 miles and 1-2 hours Protection Padding Effectively absorbs shock and provides ultimate comfort High-density Sponge Pressure resistant and machine washable Super Light Multi-level intensity foam ensure light wight and more comfort Stretchy Silicone Enhance air permeability and moderate resilience What is the difference between 3D and 4D padding? kindly note that 4D and 3D padding have different densities in the foam to help reduce the pressure. The 4D has stronger support for the padding than 3D. Hope this helps. Do these have a drawstring waist? No, it’s just an elastic waistband but they fit well. They’re comfortable and have stayed in good condition after several washings. What length is the inseam? 9 inches refers to the data measured in the shorts tiling. And it is a stretch fabric. They’re a little longer than most and stay in place. Are these bike shorts UPF50? YES. They are most likely way beyond that as it is totally opaque fabric. Hence it will protect you from the sun as any typical bike jersey would. Please refer to the data to choose your size. Inseam refers to the length of the garment, from the crotch seam to the hem. The length of 9" refers to the data measured in the shorts tiling.