1.Tripod Pocket- Right side stretch and tall pocket with compression straps for tripod base. 2.Clothing Zone- Fits 3-4 pieces of clothes, and other articles for daily use, like sunglasses, wallet, passport, charger, keys, etc. 3.Camera zone- Lower camera zone with removable dividers allow you customize layout to fit 1 DSLR camera with 70-200mm lens attached, 3-4 standard lenses. 4.Thick-padded Laptop Compartment- Soft bubble foam padded on all sides (especially bottom) to protect your 15 inch laptop from any bump, shock and accidental scratches. Large opening design for easy inserting and accessing your laptop. 5.Water Bottle Pocket- Left side stretch and tall pocket for organizing large size water bottle or umbrella. 6.Accessories pocket- Organize accessories with elastic straps, such as cables, chargers, batteries, etc. 7.Normal Backpack- Removing inner customized padded dividers can easily convertible from a camera backpack into en everyday backpack. 8.Dimensions- Airplane carry-on compatible External dimensions: 11.8"L x 7.5"W x 15.7"H Inner upper dimensions: 10.6"L x 6.7"W x 6.2"H Inner lower dimensions: 10.6"L x 6.7"W x 9.5"H Laptop compartment dimensions: 11.2"L x 6"W x 15.2"H