Works great!
This jacket was recommended to me by a friend (also military) when we were standing up on a ridge-line in about 40 degree weather with the wind howling in our face. Myself and a couple others were getting pretty cold while my friend with the Quark jacket seemed to stand there unaffected by the wind. I asked him "Aren't you cold?" and he replied, "No, I've got this jacket that's the bomb." He showed it to us later. Being in the infantry, I'm always interested in something that is waterproof, windproof, and weighs almost nothing. A little pricey for me but you also get what you pay for.

4.5 STARS
This jacket is a full feature ultralight shell. At 10 oz it has pit zips, breathable waterproof membrane,laminated seams (MH calls "zweld"), a waterproof breathable membrane (conduit), and pockets in the right places. What you should know - At 10oz its obviously not woven out of steel. Its not Bomb Proof as people like to say, Its a thin material. Strong and very stretchy but thin. The Quark is a hardshell, but the material feels kind of like silk. Its made out of a laminated nylon webbing material. If you need it for constant rugged thistle coated off trail hardcore backcountry hiking, (wow thats a mouthful) the Quark probably isn't right for the job. If your like me, and you already have the right soft shell base layer mix well you don't need it for that. It comes out on occasion when the sh*t hits the fan - Bingo Bango time to set up camp and haul ass you have a full feature shell. packs to the size of a grapefruit. Those cubic inches are in short supply! If you do the math and rain or sleet is worth 10 oz well it's well spent on the Quark. Also I wear it around town - it looks sick. In spring or summer over a cotton tee shirt, in fall over a synthetic shirt, heck maybe towards winter over a fleece - perfect! Oh whats that its going to drop into the 30's Tonight with sleet! - not a prob just add a pair of thermals (silk or synthetic hmm). It's a great jacket. Now onto the hood - there are complaints about it being overbearing if you don't have a helmet on. It can be fixed. With the cinch cord It snags on a baseball hat perfectly so if you wear a hat not a problem. If you aren't wearing a hat simply fold the bill under towards your forehead cinch and bingo bango the hood is snug and your peripheral vision is great. Order up a size unless you only wish to wear in summer over a t shirt, or you think your a hot tight cloths fitting euro fashion freak show. Seriously if you are a medium get a large and so on.With the right cloths this jacket is like a cherry on a Sunday. You can go lighter if you want to lose features like pits zips, check out outdoor research zealot at 7.7 oz. you can even go down to 4 oz if you want breathable water resistant. Heck for 19oz you can have an Arcterx Theta ar and jump out a plane into a war zone, during the dead of winter, in a blizzard, take out the enemy, and set up camp without leaving a scratch on it. However it'll take up at least twice the space and weighs twice as much, and trust me it's serious over kill in weather above 40 - 45 degrees. Point is for my three season needs its perfect, figure out what your needs are, and if you have room for 10oz in three seasons, the quark jacket may be the way to go.