Benjamin G.wrote a review of Arc'teryx Theta SV Bib - Men's on January 29, 2016
Familiarity: I've put it through the wringer
Fit: True to size
I have put these bibs through the ringer, so to speak. When I am not working, I use these bibs for backcountry skiing and wet weather hiking. When I am working, I use these bibs every day as rain pants in the rainforest of far western Washington (I am a forester and am in the woods 6 inches of rain or shine). Here are my notes:
These bibs are not downpour proof. I have used many different brands to keep me dry in the woods in my career, and can easily recognize the difference between perspiration and leakage. When I wear these and it is really coming down, my crotch and knees get wet. The zippers and lightweight material were not designed to keep steady streams of water from penetrating the fabric and crotch zipper. I have owned <$100 hiking rain pants that have performed equally if not better in downpours, although these bibs are more durable.
After less than one year of use, I have developed two large holes, one on each cuff, from repeatedly kicking branch stobs and from ski edge abrasion. Please note that I am not necessarily holding this against the bibs because I fully understand that I use these things for some of the harshest off trail brush and slash travel as you can imagine. I have found the seam between the reinforced kickstep and the regular material to be the weak point.
The articulated knees and crotch are simply awesome. I can drag my long legs up and over downed logs and lift my knees as high as I need to without the slightest bit of bind or pressure. These things are very comfortable and can be adjusted to fit exactly how you want them to.
The breathability is better than I found with any other garment I have owned. I can be moving fast uphill all day without sweating through my cotton pants (other than the leakage points described above).
When I use these things for skiing, I am always impressed. The great breathability, flexibility and comfort make them a joy whether I am cruising down the groomers or skinning in a blizzard. I have yet to find a snow day where the rate of frozen precipitation is greater than the gore tex can shed, although when it rains, it is a different story. The inner gaiter keeps all snow out and prevents the bibs from riding up my leg while hiking.
The bottom line:
Used solely as ski pants, these things will exceed your needs and will never let you down. As rain pants, look elsewhere (something cheaper will do just as well). If you need a pair of bibs to operate as a go to ski/ mountaineering/ hiking/ workwear shell layer, these may be the best compromise I have found, although they are not quite as durable or waterproof as I wish. Not sure I will ever find a pant that is, but I did pay nearly half a thousand dollars for these...
Hope this helps