Function: It is intended to carry general supplies, extra rations (sustainment), or specific mission-essential items like smoke grenades.
Attachment: The pouch uses the MOLLE/PALS (Pouch Attachment Ladder System) webbing to securely attach to plate carriers, vests, rucksacks, or other MOLLE-compatible gear.
Construction: Typically made from durable, water-resistant nylon fabric (such as Cordura) and features a cinch-top closure under a flap secured by a quick-release buckle, allowing for adjustable volume and secure contents.
Dimensions: While specific dimensions can vary slightly by manufacturer, the size is appropriate for a standard M18 colored smoke grenade, which is why it is commonly pressed into this role despite the generic "General Purpose" official designation.