This zippered magwell pouch is made of 1000 denier nylon for maximum durability. The industrial-strength zipper protects your additional magazine well so you can change them in and out easily. The back of the pouch has hook (rough) Velcro stitched onto it and will adhere to any loop (soft) Velcro sections. It is designed to fit the Windham Weaponry MCS Bug-Out Bag system. Black only. Made in the USA.