Rucker 4.0 - 20L - Compact
Rucker 4.0 - 20L - Compact
Rucker 4.0 - 20L - Compact
Rucker 4.0 - 20L - Compact
Rucker 4.0 - 20L - Compact
Rucker 4.0 - 20L - Compact
Rucker 4.0 - 20L - Compact
Rucker 4.0 - 20L - Compact
Rucker 4.0 - 20L - Compact
Rucker 4.0 - 20L - Compact
Rucker 4.0 - 20L - Compact
Rucker 4.0 - 20L - Compact
Rucker 4.0 - 20L - Compact
Rucker 4.0 - 20L - Compact

Rucker 4.0 - 20L - Compact

Regular price $205.00

415 in stock


Built for Rucking

Purpose built for rucking and rucksack training. If you train hard on dirt, grass, and concrete, Rucker 4.0 is the tool for you to get stronger one rep and one mile at a time.

The Rucker® 4.0 is now upgraded to make it even easier to maintain your equipment. Gravity + USA Cast Iron Ruck Plate + Concrete = too many zipper failures. We can’t build better zippers to withstand this. Nobody can. So, we replaced the interior zippers with velcro and removed the front exterior zipper pocket.

The new Compact size of 20L Rucker is 1.5" shorter than the Standard 20L Rucker - ideal if you’re a smaller person or have a short torso."

It is the most comfortable rucksack ever built with upgraded padding on the top of the plate pocket for bear crawls. It also has ergonomic lumbar support and the fabric on the back panel and underside of straps does not cause friction burn.

    • Lumbar padding supports the natural curve of your back
    • Hi-vis reflective stripe across the front for safety
    • 4 padded handles: top, bottom, and both sides
    • 2 rows of external MOLLE webbing on the front and side let you customize your ruck, like adding a Padded Hip Belt
    • Frame Sheet supports the integrity of the pack as you weigh it down and allows you to carry a heavier load more comfortably
    • Interior d-ring and hydration tube exit port under the top handle of the ruck
    • YKK zippers with silent, glove friendly zipper pulls constructed from parachute 550 cord
    • Opens flat so it's easy to pack and organize. Special Forces medical rucks share a similar design.
    • Ruck Plate® compatible
    • 2 Velcro mesh pockets & Velcro Ruck Plate Pocket
    • Highly water resistant aka rainproof
    • Bottom grommet drain holes
    • Shoulder straps are extra padded to carry heavier loads more comfortably
    • Includes adjustable and removable Training Sternum Strap
    • 2"x3" hook and loop on the front panel to customize with the patch of your choice
    • Additional 2"x3" hook and loop patch panel on the Ruck Plate® pocket
    Specs + Materials 
    • Primary Material: 1000D CORDURA®
    • Back Panel & Shoulder Strap Underside Material: 210D HT (High Tenacity) CORDURA®
    • Lumbar Support: 10MM EVA Foam Padding
    • Dimensions: 11.5"W x 16.5"H x 5.5"D
    • Ruck Plate® Pocket Dimensions: 9.5"W x 11.75"H
    • Shoulder Straps: 14.75"L x 3/8"W
    • Internal Elastic Pocket: 11"W x 12.5"H
    • Internal Mesh Pocket: 11"W x 10"H
    • Internal CORDURA® Pocket: 11"W x 6.5"H
    • Sternum Strap: 17" - 7.5"L x 1"W
    • Reflective Stripe: 300 cd/lux m²
    Ruck Plate Compatibility

    The Rucker® has been purpose-built for weighted PT and to be the best rucking backpack ever built. It has an elevated Ruck Plate® pocket that will securely fit a 10LB Ruck Plate, or a 20LB / 30LB Rucker Ruck Plate®.

    No Membership Required

    Gym on Your Back

    Rucker 3.0 // New Features

    Zero Irritation When Rucking Shirtless

    Say goodbye to friction burn. All-new 210D HT (High Tenacity) CORDURA® on the back panel and underside of the shoulder straps is less abrasive and doesn't irritate skin or chew up delicate apparel (looking at you, merino wool).

    Ergonomic Lumbar Support

    An additional 10mm of EVA foam padding along the bottom section of the back panel supports the natural curve of your back. It’s raised up, protects you from friction from seams on pants, belts or Tough Leggings or anything back there. And if it’s exposed to your skin, that’s no problem either.

    Hi-Viz Reflective Safety Stripe

    Reflective safety stripe across the front of the ruck allows for visibility even when on the move at night.

    Redesigned Frame Sheet

    3mm thick, full-width frame sheet no longer tapers towards the bottom, ensuring consistent support and rigidity no matter how high your ruck is cinched.

    Tested + Proven

    At thousands of GORUCK Challenges since 2015

    Padded Handles for Ruck PT

    Padded top, bottom, and side handles - four (4) in total. Use the padded handles for suitcase carries, overhead press, overhead lunges, thrusters, ruck twists, you name it.

    Elevated Ruck Plate® Pocket

    The Rucker® securely holds 10LB, 20LB and 30LB Ruck Plates® high on your back in an elevated Ruck Plate® Pocket (the 25L size features a second pocket that secures a 45LB Ruck Plate® for up to 65 lbs of weight in your rucking backpack).

    Optimized for Hydration

    The rucker is equipped with an internal D-Ring to clip in your hydration bladder and an exit port for your bladder tube is found under the top handle of the ruck.

    Training Sternum Strap (Removable + Adjustable)

    Keeps the Rucker® secure without constricting breath or movement and is adjustable by the MOLLE on the straps.

    Bottom Drain Holes

    2 grommets on the bottom of the ruck to drain water for when you find yourself doing hydro burpees in the ocean, lake, or fountain.

    Hip Belt Compatible

    Complete with side MOLLE to integrate perfectly with the Padded Hip Belt. A hip belt allows you to distribute heavy loads to your hips over long periods of time while carrying your backpack for rucking (think the GORUCK Challenge or Star Course), plus keeps the ruck stable during Ruck PT.

    Developing the Rucker 3.0®

    When I first saw the Rucker 3.0 prototype, I was skeptical. I questioned the material selection and wondered if the lumbar support was something that would make a noticeable difference. I hate gimmicks. Life in Special Forces taught me to embrace the suck, but it also forced me to always search for a better way to do things, and to keep testing those theories in reality. In this case, there would be no substitute for a ton of miles, carrying anywhere from 20 to 90 pounds.

    The first thing I focused on was the lumbar support. Immediately, I found it a marked improvement, like nothing I’d ever felt, but time would reveal the real truth. Over the next several months, I found myself never reaching for my older rucks. It was always Rucker 3.0. This was when I knew it was a winner. Then, sharing it with some other Cadre who had the same reaction — that was all the confirmation I needed.

    The new 210D back panel fabric — I wondered whether it would hold up, so I began doing PT in my garage and in my driveway, drags and pulls and all sorts of fun GORUCK style stuff. Over and over, again and again, and my driveway turned into the proving grounds with our local GORUCK Club. We had zero issues, it was all performance, no failure. The back panel is not a place where you see a ton of exposure, but at our Challenges you see enough, and at Selection you see more, so it has to hold up. The most recent Cadre Reunion event confirmed what we had already tested: when pain is the name of the game, it’s nice to have some small comfort in your life, and a back panel that causes zero friction burns is the way to go. And it doesn’t fail. I’m not skeptical at all anymore. Rucker 3.0 is the most comfortable rucksack I’ve ever worn, and it’s not close.

    Jason McCarthy, GORUCK Founder

    Do the Work, Anywhere.

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