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  • Rab - Power Stretch Pro Bib Pant - Men's - Black
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Rab Power Stretch Pro Bib Pant - Men's


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    5 Reviews


    PS Bib

    Before you head into the hills to climb icefalls or ascend a glacier route, slip into the stretchy, insulating Rab PS Bib to comfortable lock in your body's heat beneath your snow-shielding layers. This durable Polartec Power Stretch long underwear bib moves with your kick steps and every swing of the axe. Its one piece design prevents the cold from creeping into your mid-section as it tends to when when you're wearing a separate top and bottom.
    • Sleeveless, one-piece baselayer built for mountaineering and skiing
    • Polartec Power Stretch Pro fleece is wind-resistant and stretchy
    • Slim fit enables easy layering
    • Zippered drop seat, chest pocket, and two-way front
    • Item #RAB0157

    Tech Specs

    Polartec Power Stretch Pro (53% polyester, 38% nylon, 9% spandex)
    Insulation Weight
    1 chest zippered
    Claimed Weight
    Recommended Use
    mountaineering, climbing, glacier hiking, ski expeditions
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    Size Clarification

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: Large
    • Height: 6'0"
    • Weight: 185lbs

    Just to clarify some size questions.

    I am a universal medium pant/short size (33inch) and a large shirt/jacket size (43-44inch). I am 6'0.

    I also cut the lower legs off to allow wearing ski socks without overlapping with lower fabic.

    Probably 5-stars ... but I don't give anything 5-stars.

    Finally found for what I've been looking

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: Runs small
    • Size Bought: Medium
    • Height: 6'1"
    • Weight: 140lbs

    It fits as next to skin. There is a little gap of material around the genitals. Overall, I'm very satisfied with this warm base layer.

    Great additional layer for cold days

    • Familiarity: I gave it as a gift but have feedback to share
    • Fit: Runs small
    • Size Bought: XL
    • Height: 6'0"
    • Weight: 180lbs

    I gave these as a gift to a friend of mine who works and plays in the cold. Here is what he had to say ...

    These seem to be euro sized because I normally wear a L and had to get the XL. Fit is perfect and these are an excellent piece for cold days ice climbing.

    Sizing update and this farmer john rocks

    • Familiarity: I've put it through the wringer
    • Fit: Runs small

    I am 5'9" and 135#, skinny athletic build. Always stuck between small and med, usually always get a small in base layer. First got small, I felt it fit my skinny body very well but the crotch was tight in my junk, who knows maybe it would have stretched out a bit. Returned and got the medium, looser fit throughout the body but fit my height well. From my experience rab has weird sizing. Wanted to give it four stars because of sizing but love the piece to much!

    I love this baselayer because I travel a lot and tour. Therefore unlike other one pieces that are stinky after one day (maybe a couple days with wool) this one is good for tens of days, because it is farmer john build which doesn't go to underarms and when you wear underwear your stink is separated. It is also the most efficient weight to warmth with a farmer john. Therefore just throw a med base layer top and you are set. My most used piece of clothing in the winter. Also the material is very comfortable, warm, breaths, takes moisture very well.

    So what's up with all these high end baselayers having the stupid chest pocket (this one does)?? For a while I go out of my way to buy without one (when I was comparing zip t from icebreaker to smartwool I leaned towards smartwool one of the reasons because didn't have one). Well I finally found a great use for that pocket. When stuck overnight in the backcountry I was able to use it to warm things up like my frozen orange, frozen phone so I could get 911 calls. Total life saver, so it can be used as a little oven other than that don't know any other purposeful uses.

    Sizing is way off

      I wear a medium in most things including arcteryx which is known for a tight fit. I ordered these bibs in medium and when I tried them on they were ridiculously tight on me. I could even barely get the cuffs over my foot. Thought I was going to blow a seam. I managed to pull them on but could barely breath. Quality was good and they are light but be sure to size up. For the record I'm 5'9" and weigh 170. These are going back. I'll swap them for a large and hopefully I'll nail the fit.

      So how did the crotch region feel with medium and 5'9"??? I am also 5'9" and first ordered a small (maybe should have paid more attention to your review but all my other baselayers are a small, skinny build 135#). I must say they were tight but didn't mind the overall tightness just didn't like the pressure on my junk. Need more room in crotch that's it, thinking about trying the medium.