This sack is vestile tactcal "fanny pack", Made of quality Nylon ,YKK zipper and stretch material. Half zip design ,which is easy to access the equipment also not easily fall out of the pouch even if the zipper is unsecured. Multifunction design : 1.Small zippered stash pocket which made of 4 way stretch material ,you can put small items in it. 2. Two removable elastic loops can be adjusted to hold a tourniquet or other equipment,also you can remove it when it doesn't fit your mission needs. Soft loop panel on both side.You can use your insert suite to fit your requirements. The SACK is designed to fit onto the bottom of Chest Rig, or any other plate carrier or rig that accommodates standard hook and loop, making it a versatile choice for those changing load-outs often.