[Best-selling products have been renewed!] More ease of use]The extremely popular bestselling product has been renewed! While still retaining the easy-to-use specifications, a D-ring has been added to make it even more convenient. The shoulder straps are less likely to slip off the shoulders, making them more comfortable to use. We also pay attention to the design, and the name part has been completely redesigned, and the black color has green as an accent.