1. Upgraded Non-slip Fabric: It also has new and improved silicone nubs on the inside that prevent it from sliding up and down freely, helping to keep it where you put it.
2. Extra large velcro for stability and durability. the edge of the backpack shoulder strap clip is made of double stitching technology, which is more secure when you use it.
3. Quick Release: Magnetic attachment combined with a backpack clip. Easier and less effort to use than traditional backpack clips.