BREATHABLE AND LIGHTWEIGHT, READY TO RACE. The Nike Fast Shorts are lightweight and perforated to help you stay cool on the run. Pockets keep your essentials close, while the split vent lets you push through your stride without distraction. Ventilated Comfort Woven fabric is perforated for breathability. It's powered by Dri-FIT technology to help you stay dry and comfortable. Built to Move A split vent goes all the way to the waistband, helping you move freely through your stride. More Benefits Perforated waistband with a drawcord lets you adjust the fit. Pockets provide storage for a key or card. Product Details Standard fit for a relaxed, easy feel 2" inseam Body: 100% polyester. Lining: 100% recycled polyester. Machine wash Imported Not intended for use as Personal Protective Equipment