Well, I usually don't care for Gore-Tex products. I find that they work in a very narrow range of conditions for me. My biggest problem is the premium price you pay for a Gore product. However, like the Activent jacket I got really cheap, for $85, I'll purchase a Gore-Tex jacket. Especially since it is a Moonstone product. The quality of construction is premium. It works like most Gore-Tex products which means it is best in cold, wet conditions. It is definently waterproof and has a nice feel to the fabric as well. Not like 3 layer where it feels like cardboard.

Similar Products Used:

Moonstone Activent Jacket-I use this jacket much more often because it works in a greater range on conditions.

Moonstone Momentum Alpine Parka


If you like two-layer Gore-Tex jackets, this is as fine an example as you can find for skiing and backpacking. I prefer the lighter weight—for the same durability—and greater breathability of three-layer parkas, but my friend (who’s jacket this is), likes the softer hand and greater warmth of the two-ply models with their attached mesh and taffeta liner.

At 27 ounces, this ripstop/taslan combination with pit zips is about as light as they come for two-ply waterproof breathable jackets (Patagonia’s Storm Jacket and Torrentshell are lighter, but neither have pit zips). The Moonstone jacket has impeccable construction (check the crooked and loose sewing of any North Face jacket for comparison), great styling (especially in all black), and all the usual accoutrements (hood with back drawstring, hem and waist elasticized cords, two external pockets, one internal pocket, Velcro flaps covering the main zipper, and both Velcro and elastic for the cuff closures).

Finer points of this parka are:

There are no extras to add weight or annoy (altimeter or lipstick pockets on the sleeves, a second zipper to attach fleece, plastic rings for lift tickets, a fleece chin guard that freezes to your skin, large embroidered logos, and extra seams that go nowhere).

The cordlocks for the waist drawstring are accessed from the exterior pockets so there’s no need to unzip the jacket to adjust the waist (Patagonia jackets once had this, but changed some years ago).

The hood is sensational—it folds into a collar secured by four snaps, and this collar fits just right, neither bulky nor constricting. In addition, there is a drawstring at the back to really batten down the hatches. For skiers, an attached hood that folds into a snug but comfortable collar is great because it’s hard to ski well with the hood up because of the lack of peripheral vision, but a floppy hood that just hangs down really collects the falling snow. When the hood is up, it has front drawstrings that don’t whap you in the face, a back drawstring to adjust the volume, and nice and large stiffened brim.

One detail of questionable value is the use of taffeta for the lining right under where your pack straps would go. I suppose this is intended to increase durability, but it adds extra seams where the taffeta joins the mesh lining at the upper arms and back, and it reduces breathability.

The Momentum Alpine also has a powder skirt: I don’t like the weight and bulk, and usually can keep out of the snow, but other people think their great. I’ve noticed that some supposedly climbing oriented parkas—the marmot alpinist climbing jacket, for example—now include powder skirts.

Weak points: the hood does not fit over a helmet—if it did, it probably would be too big to fold into such a nice collar. However, this isn’t such a bad thing considering that this jacket is not intended for climbers (who probably would opt for three-ply construction), and that bicyclists usually don’t ride with hoods up (that peripheral vision thing). Also, the pit zips have only one zipper pull. That was the standard a few years ago, but most parkas with pit zips now have two pulls to make it easier to open the vents while wearing a pack.

Moonstone doesn’t have the distribution or advertising of some other brands, but you can find this jacket discounted at several web sites, and I highly recommend it if you can accept the limitations of a two-ply Gore-Tex design. And yes, it is windproof and waterproof.

Customer Service

I have no experience with their customer service, but their brochures talk a good game.

Similar Products Used:

Marmot Cervino Jacket (OK), Patagonia Torre Jacket (the best heavy duty 3-layer Gore-Tex), Patagonia Super Pluma (great for going light), Patagonia Storm Jacket (a classic, and fine for most everything).

I have had my Momentum Alpine Jacket for a little over one year, and so far I love it. It has never leaked one drop, and it is light enough for summer travel. It is not an overly armored mountaineering shell, but it is tough enough to withstand normal abuse. Moonstone obviously gave it alot of thought, and the jacket has no frivilous extras and is a terrific deal. Although it is called a "jacket" it has as much coverage as most of the "parkas" I have tried on.

Similar Products Used:

Lowe Alpine Flash, TNF Mountainlight

Oops, in my previous review for my Arc'Teryx Theta AR, I said I had the Tech instead of the Alpine, oh well.

After having the Momentum Alpine for 5 years, it's finally going into retirement.
For anyone looking into a light all round jacket for everything, this is it. I still miss the soft feel of this jacket's 2-ply over my Theta AR's 3-ply.

Moonstone really put some thought into this jacket, putting nylon instead of mesh at the shoulder and arm liner so that it doesn't suffer from so much abrasion unlike the Lowe Alpine Flash that I tried which had so much mesh all over that every zipper sans the pockets snagged. The fit is loose but "breezy" when I have the huge pitzips open. The hood folds away very well and snaps down with 5 buttons unlike some TNF jackets that I tried at the store which roll up and is secured by some piece of velcro.

I heard Moonstone's really trying to get rid of their last year inventory so all of their jackets, from this one to the 3-ply Tech are on sale for something like $150. Given a chance, I might've gotten 3 Moonstone jackets instead of my Arc'Teryx but now's not the time for regrets.

Similar Products Used:

Arc'Teryx Theta AR