83% Polyester, 17% Spandex Lightweight Trackpants: This fabric is soft and ultralight like feather, quick-drying, cool to touch and highly durable. These are not meant to be thick, warm cotton lounge pants, but the quick dry summer jogger pants made of soft thin material. Elastic Waist & Ribbed Ankle: Both of the waistband and cuffs at the ankle are elastic, which fit you properly and comfortably. Pockets: Two side pockets for secure storage of small items. Versatile pants for travel, exercise, hiking, lounge, errands, etc. Roomy Design: These comfy joggers are a little roomy but not too baggy so it won't stick to your skin but wick your sweat quickly and brings you breezy feel. You can dress them up or down, perfect for working out or on days out.