【 Comfortable Fabric 】 Comfortable and delicate Oxford fabric, with clear and natural texture, wear-resistant, scratch resistant, and splashproof. 【 USB charging port 】 The backpack is designed with a convenient USB charging port, which can lead the power bank cable out of the port and charge while walking, releasing your hands. 【Breathable backpack design】Scientific breathable layer backpack design, external mesh layer&internal elastic breathable sponge can better guide air cooling, and make the backpack more comfortable. 【 Large capacity · multi compartment interior 】 Large capacity multi compartment interior storage space makes it easy to store your personal belongings.