90% Polyester, 10% Spandex 【Quick Dry Fabric】 Women Running shorts have breathable fabric, with quick-drying and lightweight features, and Won't rub your legs. Let you feel comfortable and stay cool all summer 【Wide Knit Waistband】Skin-friendly and soft frabic offers a smooth, super comfortable, low-friction performance 【Built-in Mesh Briefs】offer you a safe exercise, let you move freely. Provide a supportive, breathable fit when running. 【4 Pockets】 2 Side Zipper Pockets + Back Zipper Pocket+Internal Waistband Pocket --- Enough to securely hold your 5.5" phones, wallets and keys, ect., multi-pocket design allows you to free your hands during exercise. 【Feathery-Fit Fabric】The woven split-leg is soft and super light like feather, breathbale, cool to touch and highly durable ( Not bind or ride up ). 4-Way-Stretch fabric features quick dry Technology helps you stay dry, comfortable and focused, perfect for running, gym fitness, training, tennis, causal wear, etc.