The Ultimate Alpine Ski-touring Pack

I recently finished a one-of-a-kind ~35 liter Alpine backpack completely custom made for an Instagram follower who reached out to discuss a custom version of The Alpine Pack I recently posted about. We spent a lot of time together designing the pack, carefully selecting the features, and studying his previous backpacks for important points to consider and I think we achieved something really amazing.

I must admit, it was hard to let this one go after about 60 hours of combined work over a couple of months. But I think that particular bag will have the life it deserves, filled with hiking, climbing and ski touring equipment!

This backpack is a slightly bigger version of the previous alpine pack I made, but is built like a tank! It has many reinforcements on all four sides, and other areas prone to wear and tear. It is made almost entirely out of white Ecopak Ultra EPL 400 (a hybrid UHMWPE and recycled polyester fabric which is incredibly abrasion resistant) and boasts sturdy padding and a hip belt, a set of ski attachments (front and A-frame options), dual ice-axe attachments, rope tie-ins and a relatively huge roll-top extension for the approach.

The need to accommodate long hours of climbing and belaying meant that the bag had to have a relatively low profile when closed to not interfere with a helmet when belaying from below, and is therefore a little “fat” compared to previous designs. That being said, its owner being in fantastic shape, the increase in diameter should not interfere with arm movements in the slightest.

In the end, the complete pack weighs in at exactly 700 grams, which I am really proud of achieving with as little compromises as possible.

The back panel is of a relatively simple construction, and also out of Ecopak Ultra EPL 400 for its abrasion resistance if the pack needs to be hoisted. The complete back panel, the shoulder straps and hip belt are padded with high quality closed-cell foam for durability and to bring a little comfort when carrying high loads.

The interior is also very lean, and only offers a couple of gear loops and a small zipper pocket for IDs and other small items. All the seams and the load-bearing bartacks are reinforced and double stitched to prevent fraying of the Ultra EPL fabric in case the backing material starts to degrade. In retrospect, I think I would reinforce the seams and bartacks with a white backing fabric next time to blend in with the rest of the pack better. Since I make that backing “tape” myself, I can easily make it in the colors/fabrics of my choosing. This particular black liner is a 210D Diamond ripstop polyester fabric with polyurethane coating to act as a mild waterproofing tape as well..

The Ski Touring Pack

When a friend asked me to design a pack for his young son, I knew I had to give it a try. Little did I know that I would be designing an ultralight Ski Touring pack for a young outdoor aficionado! I mean, what a responsibility!

I wanted to experiment with the ski attachment options and figured I could design the side compression straps with the option to run them across the pack. My original intent was to either hang one ski on each side of the pack attached with the compression straps in a standard configuration or secure the pair to the front of the pack with one side of the compression straps reaching to the other side. Eventually, the choice would befell the future owner of the pack.

Apart from this little experiment, we designed the rest of the pack together, and settled on two front daisy chains and a relatively big zipper pocket. There are also some low-profile side pockets on each side for commodity, but since the main idea is to carry skis on the sides, the pockets are not a main feature. I just find that the weight penalty is small enough to warrant the extra functionality when you need it. Here are some more photos of the complete pack body.

The idea for the shoulder straps was to make a set of test straps first and try the fit, since I was not very confident fitting straps to a child on the first try. Since children grow fast, I wanted the pack to grow with him. Otherwise the pack won’t be useful for very long.

In order to keep this simple and as lightweight as I could, I thought the shoulder straps could attach to a daisy chain instead of being permanently sewed onto the back panel. That way I can add additional daisy chains to allow for higher attachment points and I can make new straps when these ones get too small.

The weight penalty of the adjustable height shoulder straps is not negligible in this weight category, but can be later reduced when adjustment are no longer necessary. A set of “grown-up” straps can be permanents attached to the higher daisy chain and the attachment hardware and webbing can be completely cut-off then. In this scenario, the horizontal daisy chains would remain.

The shoulder straps themselves are actually quite small. In the pictures, these are test straps, which will eventually get replaced after a couple of trips, and are just a way for me to figure out how the wearer wears the pack. The construction is similar to my usual straps except these do not have an S-shape but rather a J-shape.

I can’t wait to see the pack getting some mileage.