
The B2850 backpack has 2850 cu in capacity and weighs less than 2 pounds.
My B2850 backpack is complete and loaded with goodies! There’s a lot to discuss so let’s start off with the basics. The backpack is 2850 cubic inches and has a body made of 200D nylon with a strong bottom of 400D nylon. I used a framesheet for suspension, load lifters, compression straps –the works. Knowing that every little inch and element counts; I also included a handy adjustable/removable lid and collar to increase the capacity.
Because I wanted to keep the pack lightweight, I used a top-loading design, but added a lacing system on the exterior for jackets and the like. It works great for those need-to-access-quickly items. Furthermore, I gave the pack two zippered pockets on either side that are easy to access, but will still keep your valuables safe.

Zippered pockets on the B2850
The great news is that this backpack can definitely be made with a home sewing machine. I decided to you use both my Kenmore 1802 as well as my Artisan Industrial machine to test out both of them. Both worked very well and I was pleasantly surprised to conclude that a home machine can do the job.

Shoulder and sternum strap
Here are my lessons-learned from the experience:
- The biggest problem I faced was keeping in mind that every step had to be done in proper sequence. For example, the bladder pocket must be sewn to the framesheet pocket prior to sewing the framesheet pocket to the body.
- Shoulder straps can be difficult at first because of the need to insert the foam properly. Fortunately, it only takes a few tries to get the hang of it.
- Don’t underestimate the time it takes to make the pack.
- It will be a challenging, yet very rewarding project.
My recommendation is to start off with a sewing project that is a little more basic, unless you’re experienced. For example, a good starter project is sewing a duffel bag or a zipper pouch. The bonus is that you will have a handy new bag, as well as get great experience in making your own outdoor gear.
Best of luck and be sure to leave comments and/or questions.
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