Modular Lightweight Load-carrying Equipment — a system of nylon webbing rows on military and tactical packs that lets you attach pouches, plate carriers, or accessories. Source of the 'tactical' aesthetic that defines packs like the GORUCK GR1 and 5.11 RUSH series.
Gear
MOLLE Webbing
Also called MOLLE, MOLLE attachment
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Related terms in this category
Rucksack
The German-origin term for a backpack designed for load-carrying. In rucking context it specifically refers to a structured pack (frame or framesheet, padded straps, hip belt) rated for 30+ lb loads, distinguished from a casual school backpack.
Ruck Plate
A flat, rectangular steel weight (typically 10-45 lbs) designed to slot into the back panel of a rucksack. Sits flat against the spine for ergonomic load distribution, unlike round Olympic plates which would shift and bruise.
Weighted Vest
A torso-worn garment with pockets for steel or sand-filled weights. An alternative to a backpack for adding load — distributes weight more evenly around the trunk but limits maximum load (typically 20-40 lbs) and runs hotter than a pack.
Hydration Bladder
A flexible water reservoir (1-3 liters) with a drinking tube, designed to fit inside the back panel of a backpack. Hands-free hydration during longer rucks.
Sternum Strap
A horizontal strap connecting the two shoulder straps across the chest. Pulls the shoulder straps inward to stop them sliding off the shoulders, especially useful with heavier loads.
Hip Belt
A padded belt attached to the bottom of a backpack that transfers load from the shoulders to the hips. Critical for loads over ~30 lbs and over longer distances. Most rucking-specific packs have either no hip belt or a thin removable one — pure rucking favors shoulder-loaded carries.
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Browse the full rucking glossary.