★QUALITY MATERIAL & DURABLE USE: Made of Water Resistant and Durable Polyester Fabric.Ensure a secure & long-lasting usage everyday & weekend. Size: Approx 12"(W)*8"(D)*18"(H) ★EXTRA LARGE STORAGE SPACE & POCKETS: One separate laptop compartment holds Laptop up to 15.6 Inch,keeps it well protected . Main Functional spacious packing compartment for dart shirts,clothes,books,ipad,mobile and other daily necessities. Front compartment with 2 pockets,which can hold dart case,cigarette case,tissue etc.,make your items organized and easier to find. One separate bottom compartment can hold 1 pair of shoe, get off your trouble of what to wear on different occasions,such like an extra shoe for dart games or any . ★COMFORTABLE & BREATHABLE: Comfortable airflow back design with thick but soft multi-panel ventilated padding,gives you maximum back support. Breathable and adjustable shoulder straps relieve the stress of shoulder and providing great comfort for your back. Breathable and comfortable foam padded top handle for a long time carry on. ★FUNCTIONAL & SAFE: Back luggage strap allows backpack slide over the handle and fit on luggage/suitcase,easier to carry during the journey. With a hidden anti theft pocket on the back protect your valuable items from thieves,and one invisible pocket on the strap to keep coin/dart card etc. safely and conveniently. A yellow reflective band/strap to for keeping earphone/glasses in place,it can be also very helpful for cars to see you in the dark when walking in the evening! Features internal USB charger outside and built in charging cable inside,this usb backpack offers you a more convenient way to charge your phone while walking. (P.S: This backpack doesn't power itself,USB charging port only offers an easy access to charge with mobile power supply) ★WELL-DESIGNED AND STYLISH : Perfect for all people,occasions,serve you well as professional office work bag,slim USB charging bagpack,high school or college student backpack , Best choice as gifts for friends who play darts,and as gifts for Father's Day, Mother's Day ,Christmas gift or birthday gift for children,boyfriend,girlfriend,or all the people you care about.