Thirteener Thin Leather Briefcase

This slim leather laptop bag was over-engineered without a single breakable part and reinforced with extra stitching, rivets or hidden polyester strips that don't stretch.


Product Details
100-Year Warranty

Dimensions (W x H x D) 
14.25" x 10.00" x 2.50""
Weight: 4 lbs

What People Think


Love this bag. Orignally I thought it was going to be too small, but now that the leather is softening up some, it's able to hold everything I need with no issues.
David C.


What can I say. If we were playing baseball, Dave and the team at Saddleback Leather would be the home run leaders! Beautiful bag, and the craftsmanship is truly second to none!



This is my third purchase, and the quality still astounds. It's practical, large enough to fit my MacBook Air plus a leather binder and other smaller items. These products are an investment in style, utility, and the inevitable stream of complements! Never disappoint with Saddleback products.
Bill D.

This slim leather laptop bag was over-engineered without a single breakable part and reinforced with extra stitching, rivets or hidden polyester strips that don't stretch. In some places on the leather briefcase, all three reinforcements are there. Only 3 large pieces of leather make up the body of the laptop bag to minimize the number of stitches in the bag. Each time a sewing needle pokes through the leather, it actually starts a tear. So the fewer holes the better. And we only allow 5 stitch holes per inch for strength. The closer they are in a leather laptop bag, the more like a perforation the line of holes become.

Leather: We use only thick full-grain leather, which is the highest grade of hide you can buy, to make all of our leather laptop bags. The grain is the toughest and most water-resistant part of the hide and is only on the top part. So when companies sand or split off the top part of the hide (see them split it in our How to Tan Leather video at min. 6:45) to get rid of scars and blemishes so they don't have to cut around them and throw that leather in the trash. That is the equivalent of taking the shingles off of the roof. But they save a lot of money making a leather briefcase. We just cut around them and throw the expensive leather in the trash.

Lining: But if that isn't enough strength, we lined the leather laptop briefcase with pigskin, which is more durable than the full-grain leather.

Thread: And then we sewed it all together with a thick and strong industrial-grade Polyester thread. Polyester is great and evil. It's great because it never decomposes and so holds a leather briefcase together forever. It evil in the form of bedsheets because you don't sleep as well. The reason we go with Polyester instead of Nylon is because nylon deteriorates when the sun hits it and Polyester doesn't. It's really strong.

Hardware: Our 316 Stainless Steel hardware is definitely overkill for a leather briefcase, but I tell you this, you NEVER have problems with your briefcase because of the hardware. If your life needed to depend on a piece of hardware, you'd want it to depend on ours.

This thin leather laptop bag is our smallest leather briefcase and wide enough to fit any 13" MacBook Pro or laptop. The 2019 15" Macbook Pro, fits in the main compartment, but not in the soft laptop sleeve pocket inside. Two flatter front pockets to fit a charger, pens, cables, and papers. There aren't a lot of features and functionality, but that's on purpose. It's kind of just a simple briefcase.

Product Details
100-Year Warranty
Interior Key Strap

Bedtime Story

For The Kids About a Al-Shabaab on Vacation

The last small plane we were on was from Nairobi to Lamu. From there we took a 2 hour small boat ride to an island off the Northern Coast of Kenya, next to Somalia where a Kenyan friend of ours told us was a really super cool place for holiday. We didn't know about all of the Al-Shabaab terrorist activity and kidnappings in the area or we probably wouldn't have chosen it for our family vacation, but ignorance is bliss? The last night there was a little freaky. Okay, a lot freaky hanging out and discussing theology with the witchcraft practicing angel prophet of Islam, but that's for another place and time (or bag description).

So we finally get to our destination called Mike's Camp, run and owned by a British Kenyan named Mike. A charming chap who had made a barefoot luxury Gilligan's Island resort built almost entirely from woven reeds. The walls and floors were 100% woven and the ceilings were thatched. All of it was supported by branches and sticks.

It was SUPER COOL. Unbelievable. And that's why billionaires fly in to stay there all the time. Since we're not billionaires, we flew into Lamu and then took the little skiff to the island, but there are people who fly in at low tide, land on the beach and walk up the sand dunes to the camp. It's where you completely unplug. No laptop bags allowed. To read about the Angel prophet of Islam and our walk through the terrorists, go to the Slim Leather Briefcase page.

Anyways, each of those small plane bush pilots that land on the beach or take people to Lamu, have a smaller flight bag briefcase next to their seat. It's just what you dowhen you need all of your things in one small cramped place.

SKU 01-10-0025

Thirteener Thin Leather Briefcase

Availablity: In Stock
Write a Review
  • Posted by on 29th Mar 2022
    Leather Laptop bag
    I’ve had this bag for three years. There’s literally nothing I could say about it that would be critical at all. I use it every single day and I plan on doing that for the rest of my working life. My family has been using Saddleback products for at least 5 years from wallets to belts to bags. 5 stars across the board.
  • Posted by on 27th Feb 2022
    Looks Great
    I ordered this in black. looks great, especially if youre under 6' tall. Not big and bulky like the others. I would recommend
  • Posted by on 5th Dec 2021
    thin briefcase
    fantastic bag
  • Posted by on 7th Oct 2021
    My Goldilocks Bag
    In my quest for the right bag I have had several Saddleback bags. Front Pocket Briefcase, large Satchel, Messenger.... The thirteener is just the right size for my daily carry, not tempting me to take too much, and being light enough when the day calls for a longer walk. I've flown with it and it is small enough you barely notice it under the seat in front of you. Great value, and a great bag.
  • Posted by on 5th Aug 2021
    Lucky Thirteener: Perfect size for EDC!
    Since I retired, my large Classic Briefcase is a lot of bag for running errands. I wanted a small manbag in which I could carry my "pocket stuff" that doesn't fit in my pockets. Like a book, a pocket knife, phone, charging cables, and a small bottle of water, and an umbrella. I considered the Rounded Satchel but I also wanted to be able to carry my 13 inch Macbook Pro when I needed to. This bag is perfect. The laptop fits perfectly when I need it and it's not too much bag otherwise. With just one buckle and no D rings it is as light as possible for a Saddleback bag of this size. I wouldn't mind an external bottle pocket but my 500 ml (16oz) bottle fits inside without a problem. The bag gets compliments all the time. Love this thing! They are already fighting over it and I am not even dead!
  • Posted by on 26th Jul 2021
    I own one of these
    I own one of these and have bought another half dozen or so to give as gifts. The usual high quality and excellent craftsmanship from Dave and his team.
  • Posted by on 20th Apr 2021
    Replaced My Classic Duffel with the 13er and never looked back.
    I got my classic briefcase to celebrate my PhD, and then 7y later my wife bought me the thirteener to celebrate getting tenure. While I loved my briefcase, as my job became more digital and less paper-based, the briefcase became overkill. 2 years after getting my thirteener, it has become my everyday bag (Holding my Macbook air, iPad, chargers, external battery, wallet, keys, rescue inhale, and usually a small stack of papers), while my briefcase has transformed into my weekend bag when I am taking a trip. I still love both pieces, but this little bag has been the best!
  • Posted by on 8th Apr 2021
    Fantastic design and of course
    Fantastic design and of course great quality! The size is perfect for everyday carrying of documents, iPad etc. I have MANY saddleback bags and they always outperform!
  • Posted by on 27th Mar 2021
    It's like all saddleback leather
    It's like all saddleback leather products. Awesome quality and Beautiful style.