Dig into that hill training. We designed these run shorts with athletic quads in mind. swift Swift fabric is lightweight, four-way stretch, sweat-wicking, and quick-drying features Designed for: Run Built-in liner : Built-in liner offers extra coverage Lycra®: Added Lycra® fibre for shape retention Storage: Side zippered pocket to stash your run essentials Continuous drawcord: Won't get pulled inside or lost in the wash Comfortable waistband: Lies flat against your skin and won't dig in Rise and inseam: Low rise, 4" inseam Recycled polyester: 100% of the polyester in this product is recycled size 12