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About Mountainsmith Modular Hauler 3

2nds, slight cosmetic blemishes on fabric. With Mountainsmith's Modular Hauler 3, you'll never waste time looking through your unorganized gear again.


Specs about Mountainsmith Modular Hauler 3

  • Material: Hauler is 600 denier polyester oxford; cube has 150 denier mini ripstop
  • Capacity: Hauler: 5500 cu.in.; Cubes (each): 1600 cu.in.
  • Weight: 3 lb. 15 oz.
  • Dimensions: Hauler: 15 x 25 x 15"; Cubes (each): 15 x 15 x7.5"
  • Made in China


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4.497076 5 Overall Rating: 4.5 Based on 342 reviews

Most Helpful 5-Star Review

Verified Buyer Reviewed by Janet from washington on Saturday, November 1, 2014
The strap that goes around near the top is key. The modular hauler 4 lacks this strap and the entire unit flops around. Also has attachment points for a shoulder strap (that does not come with it) that the Modular 4 is lacking. Yes the extra cube is nice, but having your stuff restrained is nicer... Read More
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  • Verified Buyer Reviewed by Clint from Erie Pa on Monday, February 13, 2017
    Using for trunk organization. Will probably get another.
  • Verified Buyer Reviewed by Old broken feet from Jonesborough on Thursday, February 9, 2017
    Perfect for carrying a lot. If it's a second, sure can't tell you why. Perfect for storage in our van.
  • Reviewed by Jason F from Dallas on Tuesday, January 3, 2017
    Not sure why these are listed as "2nds" as they do not seem to have any cosmetic imperfections (at least with the two that I got). However note that this is not the most current version of the product as Mountainsmith has removed the single top handle and gone to two side straps in their latest iteration of the cubes. Also of note is that the most current version of the Modular Hauler and Cubes (at least on my Hauler 4) has a new hard plastic yellow piping "U" on each side that adds some vertical support on the sides to help keep it upright (not perfect... but better than not).

    I know that some have suggested using cardboard... but if you want better vertical support inside the cubes, my recommendation is to cut three pieces (for bottom and the two narrow sides) of white corrugated plastic sheet that you can pickup at any home improvement store (or recycle those political signs) and simply duct tape them together in a "U" configuration - so that they can still fold down when not in use but adds a significant amount of rigidity to the cube so they can stand up on their own (just be sure to keep the ribs vertical on the sides and long ways across the bottom to give you the most support. If you get a larger corrugated plastic sheet... you can also cut a piece for the bottom of the hauler that helps keep it straighter when adding/removing bags).

    In summary... this version of the Mountainsmith Modular Hauler 3 is a great value on Sierra Trading Post and a great way to organize your outdoor gear (the only significant advantage of the new version is the side straps that take the weight off the top and also allow you to move the bags easier while open. Having a four Cube and a couple of three Cube Haulers... I would agree with others that the three cube version is more manageable and easier to carry around for my outdoor activities (especially if your gear is somewhat heavy).
  • Verified Buyer Reviewed by didee99 from Colorado on Monday, November 14, 2016
    I didn't see any purpose to these when I have seen my friends with them but after my husband used one in our kitchen box on a multi-day rafting trip he recommended we buy a set. The zip top prevents things falling out and the carry bag helps to keep them bags upright although I found them more difficult to insert when the bags were sparsely filled. I took these on a camping trip and was happy enough with the organisational capability of these to keep the gear inside the car more tidy and easy to find.
  • Verified Buyer Reviewed by ye olde woodsman from State of Jefferson on Monday, September 12, 2016
    The cubes are well made and quite big. Easy to use and applicable to many usage areas. Emergency clothing and footwear are now easy to store in my vehicles.
    Camping clothing, fishing gear and other camp items now have a secure place to go and suddenly become easier to pack and load into the vehicles.
    I just ordered 5 more cubes. I am still discovering ways to use this outstanding product.

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About Mountainsmith

Founded in 1979 by legendary outdoorsman Patrick Smith, the Mountainsmith brand has become synonymous with rugged, adventure-ready gear, including tents, sleeping bags, backpacks, fanny packs, trekking poles and the popular modular hauler system. For more than 35 years, Mountainsmith backpacks and lumbar packs have been engineered to meet the rigorous demands of backcountry adventure. Whether it’s an alpine climbing expedition or an easygoing day hike, you can trust these products to go the distance. Experience the difference for yourself, and you’ll quickly understand why Mountainsmith is fittingly represented by an anvil logo. Mountainsmith backpacks, tents and camping gear are simply among the most reliable on the market today.