BURN 38L | 2300 CI

(10 customer reviews)


The FKT Record Setter.

WEIGHT: 16.5oz | 467gm
CAPACITY: 38L | 2300 CI
LOAD RANGE: 18 – 25 lb | 8 – 12 kg

The iconic Burn 38L | 2300 CI, is our Original UL Backpack, and although it is often copied, it has never been surpassed.

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BURN 38L | 2300 CI

The FKT/Thru-Hike Record Setter
WEIGHT: 16.5oz | 467gm
CAPACITY: 38L | 2300 CI
LOAD RANGE: 18 – 25 lb | 8 – 12 kg

SIZE NOTE: MED and LG Burns have have wide 3″ shoulder straps and full size padded hip belt wings – 29″ minimum Girth. Small Burns have 2.75″ straps and slightly smaller fully padded hip belt wings. 27″ minimum girth.

The Burn has been used by many FKT (fastest know time) record setting thru-hikers including three time Triple Crowner Lint Bunting.

2022 Design Change: Stronger and more abrasion resistant. The rear main pocket is now solid matching fabric with lower corner drain mesh like the side pockets. Not shown in current pictures.

Many small packs may look like the Burn. None have all the features, the awesome comfort and for sure not the the many important design and construction details. Wide and thick s curved shoulder straps, padded hipbelt wings, superior load compression and stability , multiple lash points and over 50 heavy duty sewing bartacks set it apart from stripped down “spec” packs that weighing only a few ounces less.

The Burn 38L is here to help you exceed your long distance and fast packing trail goals. Ultralight, ultra-strong, and optimized in every way to make you lighter and faster. Efficiency = Speed.

“Double thumbs up. Since 2010, I have owned two Burns. Each has at least 8,000 miles on it. I’ve yet to have any tears to the body of either pack.” – CAM HONAN

“The Burn really is an exceptionally well thought out, well made, bomber little pack. And as with all MLD products, the quality and attention to detail is second to none and a strong reminder why MLD is at the top of cottage manufactured ultralight gear.   -UL Gear Blog


• Roll top design secures into the integrated side compression straps. This helps stabilize the load significantly vs only a single over the top strap.
• Over The Top adjustable Y strap secures and stabilize loads and provides a secure strapping system to attach items on top of the pack.
• Stealth Gray or Wasabi Green Color!


• Curved Side Panels: A slight curve from the waist to the shoulders move the load closer to the upper back for more comfort. This creates a slightly larger main compartment higher in the pack that aids load control and natural hip rotation by moving the heavier gear up to reduces shoulder stress.
• S-shaped unisex comfort shoulder straps are 3″ wide X 0.8″ thick. SuperWick mesh lined with full-length highest quality 1/2″ EVA foam padding. Our shoulder straps are thicker and wider than other lightweight packs. Full length daisy chain accepts Shoulder Strap Pouches and add durability and strength. See SPECS  Tab for more info.
• Hybrid Mesh/DX 210D Ripstop Side and Rear Pockets. Side pockets are all DX 210D Ripstop with a mesh drain corner. The lower 5″ of the mesh rear pocket is all DX 210D Ripstop with corner mesh drain areas. The tough DX 210D Ripstop strip prevents abrasion from sharp contents or butt sliding accidents. The open grid mesh is non-stretch and drains fast allowing contents to dry much quicker than tight mesh or solid fabric. DX 210D Ripstop elastic top sleeves for long term durability. Bungee top sleeves are double strand -40F degree rated bungee cord.
• Large padded lightweight DX 210D Ripstop hip-belt wings with 1″ webbing and an ultra lightweight buckle. Optional removable Hip Pocket can be attached. Hip belt wings are separate from the shoulder strap. Easy to cut off if desired.
• Large, slanted side pockets are deep enough for a 2L Platypus or a taller 1L SmartWater bottle (pictured). Top bungee sleeves are also DX 210D Ripstop for long term durability vs. cheaper style wrapped tops of uncovered elastic bands. Pocket adjusts by pulling the bungee closed through the cord lock. Double Bungee cord is 1/8″ thick 40 below rated. Many lower priced (and higher priced!) packs simply bind over the top of the raw mesh with regular garment type elastic that loses it’s stretch in a few years and does not do well in deep cold weather.
• 8 bungee attachment web loops with 7 mm glide rings for multiple attachment points for load compression and gear lashing. A short loop of 3 mm line can be attached to the lower loops for trekking pole and ice ax attachment
• Removable Multi-position “Most Awesome Sternum Strap In The World” with Black Whistle-Lock Buckle 0.5 oz (not included in base pack weight)


• 10″ of black 1/8″ bungee cord for optional bungee lacing/compressing/gear strapping
• 2 mini cord clips and 3 cord locks


The Burn can be stripped down to about 12oz using only a pair of scissors.
1: Cut off the hip belt wings. -2oz
2: Cut off the side compression straps. -.5oz
3: Cut off extra length from webbing straps. -.5oz
4: Convert the over the top Y strap to a single strap.-.5oz
5: Cut off multiple small bungee straps points. -.25oz
6: Cut off extra buckles. -.25
See our video on timing down the Burn.

If you would like a 1″ removable webbing hipbelt instead of the stock padded hipbelt wings, we can do that as custom non-returnable. OK to note for this CUSTOM option in the order comments.

WEIGHT: 16.5oz | 467gm (Optional external bungee cord and sternum strap not include in base weight)
EXTERNAL DIMENSIONS: 10″ Wide x 6″ Thick x 22″-28″ Tall || 25cm Wide x 15cm Thick x 55-70cm Tall
MAX LOAD RATING: 25 lbs| 11.33 (Max recommended for a frameless pack.)
Waistbelt Minimum Girth: Small 27″/68cm – Medium+Large 29″/73cm
Shoulder Strap Width Small 2.75″/7cm Medium+Large 3″/7.75cm
Space between Shoulder Straps at Neck: Small 2.75″/7cm Medium+Large 3″/7.75cm

TOTAL MAX VOLUME: 38L | 2300 CI (using extension collar)
TOTAL MIN VOLUME: 19L | 1200 CI (with compression bungees engaged)
SIDE POCKETS: 2.5L + 2.5L | 150 CI + 150 CI
MATERIAL: DX 210d Ripstop Fabric: 210D Coated Nylon Ripstop with a 210D Pure UHMWPE Reinforcement Grid


COST: $18-36
WEIGHT: 1 oz (each) | 28 gms (each)

With our Shoulder Strap Pockets, you can easily add small gear and water bottle storage to your pack straps to keep it super handy. It’s the perfect use of extra space you didn’t know you had! Weighing in at 1oz | 28 gms, the Bottle Pockets is made of 4 Way Stretch Tough Mesh, closes tightly with a stuff sack style bungee top and fits most 12 oz to 32 oz. Also weighing in at 1oz | 28gms, the Gear Pocket is fully enclosed with a #5YKK water resistant zipper – Large enough for any phone or gps unit. Great for storing snacks, maps books, keys, water filtration drops, toilet paper, or anything else you might need to access quickly. Add one, one for each side, or one of each to your pack. Available in Stealth Grey only. MORE INFO


COST: $18-32
WEIGHT: 0.999 oz | 28.32117 gm

Our Hip Belt Pack Pockets give you little extra external pack storage, right where you need it! These super tough, waterproof, zippered pack pockets attach to almost any type of hip-belt, strap, pack daisy chain or pack side compression straps to give you easy to access, secure storage for phones, keys, cameras, and whatever else you want to keep close by. Available in Stealth Grey only. MORE INFO










TORSO LENGTH: 18 in | 46 cm
FITS: Approx. 5’2″ – 5’6″ | 157 cm – 168 cm


TORSO LENGTH: 20 in | 51 cm
FITS: Approx. 5’6″ – 5’10” | 168 cm – 178 cm.


TORSO LENGTH: 21.5″ | 55 cm
FITS: Approx. 5’10” – 6’2″ | 178 cm – 188 cm.

Over 6’2″? See the Exodus in the XL Torso size.


• Torso lengths on MLD packs are measured from the bottom of the pack below the waist belt wings to the point where the shoulder straps attach to the pack.
• 95% of MLD packs users do best to go by our height guidelines
• Different pack makers and outdoor stores measure for torso length differently AND frameless pack are measured and fit differently than fully framed packs with large hip belts. DO NOT go to your local outdoor store (REI etc…) and “get pack fitted” and then select a size/length based on that measurement; it will be wrong!
• Use our height guide! If you need help deciding the right size – Please feel free to give us a call. (Please don’t order multiple sizes as a guess!)
• Test Fit You Pack Indoors after Receiving it – We are happy to exchange for different size or refund new/unused packs.
• If In Doubt – SIZE UP!

10 reviews for BURN 38L | 2300 CI

  1. Lint

    I’ve been carrying MLD packs for many years now. Starting with the Exodus, then the Prophet, and have now used the Burn on 4 thru hikes. After removing the hip belt and sternum strap, I get it down to a sleek 11 ounces. Perfect for my 6.5 pound baseweight. It’s hard to beat the simplicity and efficiency of the Burn, if your kit is light and compact enough to work with it. The craftsmanship is top notch, and I get 2 thru hikes out of a pack before it’s worn out…so about 5000 miles from an 11 ounce pack. Pretty awesome.

    The mesh pockets on either side hold a Smartwater bottle well, and by loosening the shoulder straps slightly I can easily reach them on the go. On the rear of the pack, the large mesh pocket is great for storing odds-n-ends, or shove your wet tarp inside so it can dry as you hike. The top closure system is simple and functional…just what I want in a thru hiking pack. No zippers to break, no “brain” pocket to get in the way, just a couple beefy shoulder straps attached to a rucksack with mesh pockets around the sides. It’s the simplicity that makes this pack shine. I drop a closed cell foam pad (torso length) against the back to provide some cushion and rigidity, then drop in a trash compactor bag (for waterproofing) and fill it with my gear. I’ve carried this pack on the Pacific Crest, Appalachian and Continental Divide Trails, so it’ll take whatever you dish at it. Leaving town with a 4 day resupply and 5 liters of water is possible, although you may appreciate the hip belt for loads that heavy!

    If you’re not sure all your gear will fit into the Burn, perhaps try the Prophet, since it’s also a fantastic pack. But if you have a very low base weight and wanna experience the elation of cruising down the trail with what looks like a child’s pack on your back, get the Burn.

  2. martinlizo

    I used this backpack during a 500km hike in Patagonia (Argentina) and I’m really gratefull. I fell in love with the frameless concept too. I cut off the waist belt and removed all cords. As a result I felt abosulte freedom: I could walk in the mountains like in a park. This backpack is super ultra light and it’s tough. I passed through barberd wire and the pack was untouched: not a single hole, the mesh pockets are intact (not the same story for my other backpacks). It has all the space that I need and more. I put my sleeping bag loose inside of a cheap liner, and I even had enough space for two weeks food inside. My base weight is at 5.7lbs/2.6kg. It was super confortable and I could reach my water bottles while wearing it. I’ll use it for the GPT (Chile) in December. This is my favourite backpack and I plan to use it for the next ten years. Thanks to MLD. Cheers from Argentina!

  3. fiddleheadpa

    Got the Burn before my Via Dinarica hike last summer. I love it. Strong and durable. I’ve now hiked in 8 different countries with it and it looks like the day I received it. I did strip it down a bit and my only thing I can think of to make it better would be a slightly bigger rear mesh pocket. The sides are fine and I get 2 – 600ml water bottles in each one. Mine has now been to 5 countries in Europe, Tasmania (Walls of Jerusalem) , Vietnam (Fansipan) and Taiwan (Wuling Sixiu) and Thailand.

  4. Salty (verified owner)

    Another bad azz product from MLD! Ordered a Burn Pack and can’t say enough about it! Just did TRT in lil over 8 days, even with long water carries this pack was comfortable up to above 25lbs with the (New in 2018) beefier shoulder straps! Had Prophet Pack previously but found was way more space than I needed. I also have the DCF/Cuben DuoMid which is the cats arse!

  5. bg26892 (verified owner)

    If you are looking for a frameless pack – this is THE ONE. I used this bag for the entire PCT this year and was impressed by the quality, craftsmanship, and overall durability. One area that stood out the most was how durable and comfortable the shoulder straps were – the foam and stitching held up well after over 2500 miles. My one complaint is that the mesh seemed somewhat prone to tears – but this can easily be rememedied with a needle/thread. (MLD NOTE: 2019 Side Pockets are now all Dyneema X!) FWIW – along the trail I spoke with a two experienced MYOG hikers who both mentioned that they used the BURN measurements/design as reference when making their packs.

  6. Nicolas (verified owner)

    Just received mine. This December 2018 model seems great. Can’t wait to test it.

  7. Cloudsurfer

    I just wanted to share how much I LOVE my MLD burn. So far I’ve used it for a thru-hike of The West Highland Way and the Arizona Trail, and recently I took it to the Peruvian Andes on the Huayhuash Circuit and Santa Cruz Trek. I’m rocking between a 6-7.5 pound base weight and usually hovering around 20 pounds with food and water. It is oh so comfortable, simple, and durable. I have 1,200 miles on it so far and it still has little sign of wear. It’s a 2017 model.

  8. Andy

    My favorite pack!! From day hikes to thru hikes this thing ROCKS. The simplicity is amazing. Everything you need and nothing that you don’t.

  9. Kim Vogel (verified owner)

    Ron at MLD provides fantastic customer support. I noticed that I had lost my sternum strap buckle, one week before my month long backpacking trip. I emailed Ron on a Saturday night, got a response from him first thing Monday morning saying the buckle was in the mail. I got it Wednesday afternoon, three days before I needed to leave for my trip. This is fantastic customer support, solidifying me as a life long customer.

  10. Nick Withers (verified owner)

    After thinking about going ultralight following some time on the pct I decided to go with this pack. I am so happy I did and this is one impressive pack. I was scared that it wouldn’t have enough volume but with this pack of there’s a will there’s a way. The extension collar adds so much possibility for long hauls the Y strap works wonders. It’s durable and carries amazing, it really molds to your back. The thicker shoulder pads also provide insane comfort. You do have to be careful how to pack it but with a sleeping pad as the frame it works well. It held 8 days of food for me in Hokkaido and worked perfectly in very harsh alpine conditions. I have never lacked anything with this pack. It doesn’t have load lifters but I have not needed them. If you are on the fence about buying it, know if you need to haul a heavy pack this is not for you. That being said i have put 30 lbs in this pack and have been fine. If you are thinking of going ultralight and want versatility I highly recommend this pack. I would have no problems through hiking again with this pack. Thank you MLD for the amazing quality at an affordable price point. I will be looking forward to future products!

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