Muscle control. You only think about it when you don't have it. Fortunately for you the On The Run pants deliver it in spades, along with excellent support. So go ahead and run faster, stronger, longer. Because in addition to a steady glide, you'll experience the comfort of soft flatlock seams that prevent chafing, and reflective details that keep you visible in low light. Made with Xtra Life Lycra, this resilient fabric is breathable, quick-drying, odor resistant and super stretchy. What's more, the wide waistband pulls you in without digging in, so your midsection is fully supported too. 21-inch inseam. 83% polyester/17% Xtra Life Lycra Spandex Jersey. Imported. Hand wash in cold water.