Specially designed for Biking / Hiking / Travel / Camping; Using Sturdy Anti Automatic-out-buckle, taking all stuffs at ease and enjoy a cozy journey.?Attention? small size is suitable for children and petite woman, the medium size is suitable for adults.? Made by Waterproof nylon, lightweight,soft with exquisite stitching pattern, durable & scratch-resistant, no pills over use.Small Size:6.5"×2.98"×13.17" This SWEAT-RESISTANT & ULTRA-LIGHTWEIGHT Chest Bag - Holds all cell phone models, ipad mini 7.9 inch, keys, wallets, credit cards and other small essentials. A specially designed small zipper pocket on the shoulder strap for keys or Mobile phone under 5.5 inch; Side pouch for sunscreen spray,Coca Cola bottle or umbrella. SOFT Breathable absorbing mesh and sponge material designed shoulder strap, elastic, adjustable, effectively eliminate the sweat, comfortable carrying.