Adjust the tightness as you need, suitable for woman and man at any age.A lot of useful compartments, include main compartment, two zipped front pocket, sleeping bag compartment, bottle holder on the sides, a perfect size for daypack or flight carry-on. 3D Breathable mesh and compression shoulder straps, help relieve the stress from your shoulder. Made of two different materials, the material for pocket faces and part of the inside is waterproof nylon. The hiking backpack is great for when you do not want to carry a heavy backpack with a frame, but still want a pack that is reasonably sturdy and spacious.