Padgene Lightweight Hiking Climbing Running Cycling Camping Outdoor Sports Daypack 25L A hip belt is actually built into this pack which is a surprising and welcome addition (also with the same mesh and some much thinner padding). This belt has two zippered pockets built in that add some storage space and for sports like running, mountain biking, climbing etc... This bag has several features which make it a nice choice for activities,it is a panel loader, meaning storage space is accessed via zippered panels of which there are 3 in this particular model. There is mesh covered padding on the outside of the back panel which creates air flow between you and the pack and this means cooler temps and increased comfort; not only during strenuous activity, but anytime you have it on. There is padding over both scapulae as well as over the lumbar region. This same mesh padding is used on the shoulder straps with the same effect. The shoulder straps and hip belt are adjustable allowing for fine tuning of fit, there is also a load adjuster strap and a sternal strap each of which can also aid in this process. Each of these features make this a pack that is ready for activity. Please search " Padgene Backpack " for other choice.