Paddedand breathable mesh back panel prevents overheating, while also promoting aircirculation. The adjustable and heavily padded shoulder straps made ofhoneycomb breathable material, Ergonomic design ensures the dispersion ofgravity of the travel backpack, makes the backpack comfortable to wear even whenloaded with all your gears. Stylish Sunglass Band on shoulder straps hangsunglasses, clip work ID and keep other small items conveniently accessible.