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Mountain Hardwear
Expedition 100L Duffel Bag

4.7407407407407405 out of 5 stars
27 Reviews
Color:Alpine Red



Expedition 100L Duffel Bag

Whether we’re packing for a week at basecamp or an epic road trip of ticking off high-alpine climbing routes, the Expedition 100L Duffel Bag is a reliable choice for our gear hauling needs. The foam-padded shoulder straps offer comfortable backpack carry, and can also be removed for less intensive travel needs. For burly expeditions, there truly aren’t any destination outside of this duffel’s capabilities, thanks to the waterproof 1000D Cordura base material and 840D ballistic nylon upper.


  • Heavy-duty duffel catered to expeditions in extreme weather
  • Internal compression system consolidates for a low profile
  • Foam reinforced base improves structure and abrasion-resistance
  • Waterproof zippers keep your gear dry throughout the storm
  • Fully adjustable harness system lets you fine-tune load carry
  • A plethora of internal and external pockets organize your gear
  • Daisy chain supplies lash points for harnesses and axes
  • Item #MHWZ9DW
[face fabric] 840D nylon, [bottom panel] Dimension-Polyant X-Pac X51 (80% nylon, 20% polyester), [lining] 70D ripstop nylon
100L (6102cu in)
Backpack Carry
Shoulder Strap
internal system
[torso range] 16 - 22in
Claimed Weight
3lb 13.2oz
Manufacturer Warranty

Overall Rating

4.5 based on 27 ratings

Review Summary

1 Stars - 1 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 3 reviews
5 Stars - 23 reviews

What do you think about this product?


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5 out of 5 stars

July 4, 2024

It’s magical.

This is a great duffel. I put most of my equipment in there, looked down and hadn’t filled half of it. It turned into Hermione’s bottomless travel sack. Kudos to the designers at Mountain Hogwarts. The internal and external compression straps are perfectly positioned to keep your gear nice and tight.

Mountain Monk

Originally reviewed on

5 out of 5 stars

June 24, 2024

Last duffel you'll ever need

This is by far the highest quality duffel bag I have ever used! Plenty of space for gear, the backpack straps are great for carrying when full. My favorite feature is the cinch straps on the ends and middle of the bag. Allows you to secure the bag tightly so your gear doesn't bounce around. 11/10

user image

Originally reviewed on

5 out of 5 stars

January 2, 2024

Great bag

Great open/closure cresting easy access to all gear.


Originally reviewed on

5 out of 5 stars

December 18, 2023

A must for travel

This new design is so good! Super User friendly and more structured compared to older designs


Originally reviewed on

5 out of 5 stars

December 10, 2023

Well constructed duffel/ backpack perfect for travel.

Very roomy, durable and well constructed. Used for international travel w/ river gear. Backpack conversion is simple to use.


Originally reviewed on

4 out of 5 stars

July 19, 2023

Difficult to Stuff

Great bag, but I think the way the bag is structured it looses some of its full packing potential. However the durability and functionality is 10/10

Marcus Donesky

Originally reviewed on

5 out of 5 stars

June 9, 2023

Impressed with Quality and functions.

Bag is well made am happy I went with the Mountain Hard Wear duffel over the other brands. Lots of adjustments and quality is excellent.

Josh S

Originally reviewed on

4 out of 5 stars

June 2, 2023

Bomber With One Flaw

I have owned this bag for around a year now and have taken it on enough trips that I feel confident I can provide a review. I use the bag mainly for climbing/mountaineering trips and traveling for rescue training. Historically there was a pretty famous expedition duffle from a competitor which I have used extensively. Recently however they changed their design making the bag less desirable and I have been in the market for something to replace my aging stock. The bag is well laid out and very durable, no question. I routinely travel with crampons, ice tools, trad racks, avvy gear, etc. and none of them have caused any rips or tears in the bag. I love that you can separate the interior space of the bag as well, this allows me to keep the sharp bits away from clothing or other more sensitive gear. The only durability issue I have seen to date is the clear window on the outside has some small tears in it. I assume the ripstop weave is Dyneema which seems to have stopped them from becoming bigger. I use that pocket for ID tags when traveling with multiple duffels, so maybe the extra use has worn it out faster. I mainly travel via plane, which brings me to the one big flaw I see with this bag - it is VERY confusing to airlines and baggage handlers. When I check this bag, most airport staff make me remove the external shoulder straps because they are a snag hazard for the conveyor belts and rollers that move the baggage throughout the airport. Once those are removed, the side handles are really the only way left to move the bag. Unfortunately however, when the bag is fully loaded, the side handles don't stick out very well, and they are not in a contrasting color. Because of this, 99% of the time baggage handlers don't notice them. As a result, they grab the one thing they notice which are the side and top compression straps. This happens to me almost every time I fly and then because of them jerking on compression straps, they become very loose and the G hooks occasionally pop off leaving them and the strap to get caught and the ends of the bag to come loose. At least one of my G hooks is slightly bent from them yanking on the straps from a weird angle. My remedy has been to expect this will happen and tie a stopper knot in the strap against the G hook so it can't loosen or throw some half hitches around the strap with the tail. The only bummer with doing that is that it takes some time and the knots can be pretty tough to get out. I would just like to see future versions of this bag have the handles be a bright color and the compression straps black so people are less drawn to them for lifting. I assume many folks who get this bag for expeditions will have to fly at some point, so it only makes sense that the bag be functional for air travel and those who will be moving them. Other than that issue, it is a great bag.

Expedition Bag

Originally reviewed on

5 out of 5 stars

April 29, 2023

Held Everything

This bag held everything I needed for a 10 day trek. My sleeping bag took up most of the space but the interior belts helped compress it so that I had plenty of space for clothes and gear. Extremely well made with lots of extra belts inside and out.


Originally reviewed on

5 out of 5 stars

March 25, 2023

Ski trip to the mountains

Went to Killington Vermont on a ski trip first time I used my duffle bag and I have to say it's an AWESOME piece of gear the material is strong as steel if someone is looking for a duffle bag that is strong this is the one best one I ever have had

Ski dude

Originally reviewed on