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As the burliest mountain pants in the Arc'teryx lineup, the Men's Alpha SV Bibs keep you bone dry in the worst mountain storms thanks to three-layer Gore-Tex Pro material. Not only do these waterproof breathable pants fight off horrendous snowstorms with ease, they also keep you from overheating with an ultra-breathable Schoeller Dynamic softshell upper. Waist-to-ankle side zippers provide ventilation and allow you to put on these pants even when you're wearing mountaineering boots. Arc'teryx added a through-the-crotch zipper to the Alpha SV Bibs to make answering natures call a little easier.
Bottom Line: Count on the super-tough Arc'teryx Alpha SV Bibs to protect you through the worst storms you encounter in the mountains.
Trying to decide between the Alpha SV and Theta SV bibs. Will be used primarily for skiing, snowshoeing and winter camping. What is the difference in construction?
I don't think it gets any better than this bib. Very well designed. Maybe the elastic cords could be more durable, but even those work perfect. Very easy to get in and out. And it will keep you dry.
The Arc'teryx Alpha SV bib isn't "lined" per se. These bibs are made with Gore-Tex Pro-Shell, which is 3 layers laminated together (face fabric,Gore Membrane, and a woven backer) the backer on these is a wicking polyester, but you'll need to wear a layer or two under these for insulation. The Pro-Shell is nice because it's really durable, but still light, and moves nicely.
I bought these and was really happy with their quality and waterproofness.
However, I snowboard and only after 20 days up this season, the back parts of my legs where the legs meet my high backs of my binding have worn away to the point of a hole developing. I have since had to slide the legs around 90 degrees in order to have the kevlar part reside where it meets my high back. So for future snowboard users, please move your legs around 90 degrees so they won't ware away. A trick I use is to clip the bottom of the legs (there's holes for gators) to my boot lace so it sits there nicely and won't slide back to normal. The kevlar should last much longer. Wished I thought of that first. Otherwise bomber pants!!!
The Arc'teryx Alpha SV can be a great ski pant. they have foam knee pads (removable), articulated knees, and use a tough face fabric. If you're primarily looking for ski pants, you could also look at the Theta SV bib.
So yeah, these bibs cost more than my playstation 3 but ... if you need bomb proof protection and stellar performance across variable weather conditions then look no further. Construction is awesome! The crotch zipper and knee pads are just off the hook convenient!! These bibs are 100% waterproof. I'v had these bad boys out in freezing rain for +5 hours and stayed totally dry. The fit is typical Arcteryx, no extra or loose material anywhere. Im 6'1 ~175 lbs and I M/Tall fit perfect. The ultra-breathable Schoeller softshell upper is perfect with my Alpha LT in colder conditions. Iv tried other bibs like the Cloudveil Koven but the fit, weight, nor construction were anything like these. At any rate, these bibs are flat out great ... just look away when you pay the bill.
I'm sure the Arc'teryx Alpha SV work great. Just wash them alot if you'll be in salt water, as the salt will kill the breathability and DWR if it builds up. They don't have any insulation by themselves, so some fleece pants underneath would be necessary, or better yet, check out the Kappa insulated pants from Arc'teryx. Primaloft under windstopper. Serious protection!
These bibs rule. Like the jacket, they are perfectly designed. I am 5'10", 155lb., and small fits perfectly for jacket and bibs. The articulation is phenomenal, with no bunched up fabric whatsoever, but still plenty of room for layers underneath. For above-treeline winter trips such as the Presidentials I usually use two long underwear layers under these, but one is plenty for most other applications. There is definitely room for heavier insulating layers under here too.
There is a downside to the bib design (as opposed to regular pants): in order to fully take advantage of the bibs, if you stop to change upper layers, you have to remove the suspenders as well as your jacket to do so. However I don't consider this a drawback, because it is the only way that one might achieve such a high level of warmth and protection from elements. The alternative is to just layer over the bibs, but this sort of defeats the purpose. Picture yourself wearing a baselayer and thick fleece top with these bibs zipped up and over these layers. The bib top (when zipped over your upper layers) keeps all of your heat in while effectively blocking updrafts and snow that might make it past the hem-cinch of your jacket. Also, since the Schoeller softshell material has been chosen for this section, the breathe-through characteristics are as good as it gets.
I have climbed many alpine routes with these bibs. I also use a pair of OR gators. The gators keep snow out of boots when high stepping and the help to keep you from cutting the bibs with your crampons. The bibs have a small kevlar patch designed to prevent this, but I have found that you will kick every spot except that spot. Hope this helps.
That's exactly what the Arc'teryx Alpha SV is designed for, alpine climbing. Yes, you can put gaiters over the cuffs if you like, seems like most folks don't because the cuffs can cinch down over your boots well enough to do away with a gaiter.
These are great. I have owned my pair for almost 10 years. They still breath great, fit great and work like new. I wash and treat them a couple times a year with nikwax. I have no doubt they will last another 10 years.
I have study the Arc'teryx sizing chart. But I still can't figure out what size I need.I know I need medium. But which length should I choose?My "inseam" are approximately 82-83cm. The Medium Regular says 77cm and the Medium Tall 85cm.Any suggestions?Thanks
Well if you go for the Regular, it'll be 3 inches too short versus an inch too long with the Tall. I personally would go with the Tall, since they're ski pants and it doesn't matter if they're a little long.
I have had these 7 seasons - they just will not quit, and that is a good thing. I sent them back to Arcteryx and they fixed the gators for free when they got beat up. Great for touring with the full side zip and the 2 way fly makes cold weather peeing a breeze!
Any problems with snow in the boots since they don't have gaiters? I would use them mainly for backcountry skiing, so they would be going over a tele boot.
No problem, I use them with Garmont Excursions and have snow climbed in deep snow with no problem, cinch the drawcord down. I also sometimes use a velcro strap around outside at the bottom at .2 ounce each, the ultimate ultralight gaiter. The bibs have grommets on the bottom for a strap under the instep but I haven't used that.If they are mainly for day skiing you might consider the heavier duty Arcteryx bibs.
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