WATERFLY Sling Chest Backpacks Bags Crossbody Shoulder Triangle Packs Daypacks for Cycling Walking Dog Hiking Boys Girls Men Women PREMIUM MATERIAL - Made of superior nylon and mesh fabric materials, soft, washable and durable. WATERRESISTENT - Water repellent and tear resistant, along with delicate workmanship, taking you excellent experience. FOLDABLE & LIGHTWEIGHT - This sling bag can be folded into the interior zipper pouch and expanded to a large backpack, lightweight and portable, great for the gym and travelling. The expanded size is approximately13.7 x 4.3 x 17.3 inches, the folded size is approximately 6.69" x 5.9" x 1.77" (17 x 15 x 4.5cm). The main pouch can easily hold iPad 4/5/6 or iPad air. Back hidden pocket can keep your wallet, cash and other valuables. ADJUSTABLE & BREATHABLE STRAP - The breathable mesh strap provides fresh and comfortable experience for your shoulder, with adjustable buckle, you can adjust the length according to your needs, very convenient. The length of shoulder strap is 24.4-31.1 inches /62-79cm. Thestrappocket is about 7*3.54*1.38"/18*9*3.5cm (H*L*W),ideal for phone4.7 like iPhone 8. The side pocket can hold the water bottle or umbrella stably. UPGRADED DESIGN - Compared with other ordinary sling bag, this chest bag adopts upgraded design, reinforced strap, flawless strap zipper bag and perfect workmanship make it your best choice! After-sales guaranteeIf you have any problem with broken or damaged items you purchased, please do not hesitate to contact us with your order ID. We will reply and address your issue within one day, so please purchase with confidence. Fashionable &amp; leisure sports sling bag Can be used as a right or left-handed cross body bag 5 optional colors fit for both males and females Water resistant superior nylon surface Lightweight &amp; portable Tear resistant &amp; washable Breathable mesh strap is comfortable for all-day wear 15L capacity Expanded size: Approximately13.7 x 4.3 x 17.3 inches Folded size: Approximately 6.69&#034; x 5.9&#034; x 1.77&#034; (17 x 15 x 4.5cm) Shoulder Strap Length: 24.4-31.1 inches / 62-79cm The main pouch can easily hold iPad 4/5/6 or iPad air Back hidden pocket can keep your wallet, cash and other valuables Strap pocket is ideal for phone4.7 like iPhone 8 Strap phone pocket is compatible with 4.7 phones, while the side pocket can hold the water bottle or umbrella stably Zipper pocket which can keep your valuables safe, such as your ID, cash, credit card, driver license, ect. Mesh strap contact surface is soft and breathable for long time use