Larger zippered compartment compatible with many electronics up to 11" tablets. Dimensions: 15.3 x 7.5 x 3.5 inches (L x W x H). Smaller zippered one for phones, wallet or outdoor/travel sundries. 2 mesh bags in each side for water bottle or umbrella (up to largest diameter 2.5 inch). Multi-functional storage area, accessary compartment with functional pockets to keep your items. Flexible satchel shoulder strap varied from 18 to maximum 36 inch can be adjusted loose or tight. Perfectly fit your body. Two ways of carrying: left or right. Relieve the pressure when you carry your bag for a long time. Can be used as messenger bag / shoulder bag / crossbody backpack / casual daypack / sling bag / chest bag/ working or business bag. An earphone hole on the front pocket enables you to enjoy music easily. The breathable shaped padded shoulder strap and back panel is extremely comfortable and lightweight, which will release heat rather than accumulate. Durable.