Outdoor Research Men's Size Chart Running tights for mountain people. The Pentane Tights have everything you need-reflective logo and trim, two stash pockets at hip plus one zipper pocket-and nothing else to get in the way. Flat-seam construction and wicking polyester/spandex blend mirror your movement and stay out of your way so you can do your thing. Features: - Breathable - Lightweight - Quick Drying - Movement-Mirroring Stretch - Wicking - Zip Back Pocket - Reflective Logo and Trim - Hip Stash Pockets - Flatseam Construction - Elastic Waist with Internal Drawcord - Gusseted Crotch - Reflective Print on Back Calf Panel - Fabric: 83% polyester, 17% spandex - Inseam: 31" / 79 cm - Weight: 13.3oz / 378g Avg. Weight for size L