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  • Arc'teryx - Phase SL Boxer - Women's - Dreamscape
  • Arc'teryx - Phase SL Boxer - Women's - Black
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  • Arc'teryx - Phase SL Boxer - Women's - Dreamscape
  • Arc'teryx - Phase SL Boxer - Women's - Black

Arc'teryx Phase SL Boxer - Women's


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    • Dreamscape
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    9 Reviews


    Show 'em What You've Got.

    Give the mountain your worst while the Arc'teryx Women's Phase SL Boxer helps you feel your best. Engineered for optimal moisture management, this performance boxer is made from next generation Phasic SL fabric for a softer touch and improved stretch. Ideal for stop-and-go activity, this boxer wicks moisture during active phases and dries quickly when you're at rest to keep you more comfortable. An updated fit and flatlock construction provides next-to-skin comfort, while a gusseted crotch enhances mobility.

    • A performance boxer ideal for stop-and-go activity
    • Phasic SL fabric wicks moisture and dries quickly
    • Stretch construction with gusseted crotch for mobility
    • Flatlock seams enhances next-to-skin comfort
    • Durable Anti Odor finish keeps funks at bay
    • Updated form-fitting design
    • Item #ARC00JI

    Tech Specs

    Phase SL 100% polyester
    boy short
    Recommended Use
    fitness, casual
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Sizing runs large.

    • Familiarity: I've put it through the wringer
    • Fit: Runs large
    • Size Bought: small
    • Height: 5'6"
    • Weight: 120lbs

    These undies are super comfortable, but I wish I would have sized down. I usually wear a small in everything/every brand, but the smalls of these are just slightly too big and the waist tends to rise up as I wear them which gets pretty uncomfortable by the end of the day. Even with the sizing issue though I still wear them all the time. They're really lightweight, breathable, and the legs stay in place! I think they'd be perfect for backpacking trips if the size was right...

    Super Comfy!

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: Medium
    • Height: 5'3"
    • Weight: 130lbs

    These are fantastic. I'm generally a medium in everything and these were true to size. Didn't ride up at all. Super comfy material. Wish I could have a pair for every day!

    Best Panties!

    • Familiarity: I've put it through the wringer
    • Size Bought: Medium
    • Height: 5'4"
    • Weight: 140lbs

    These are fantastic! I have many pairs in medium. I like that the elastic band doesn't pinch, roll, or give me a muffin top. I absolutely love these. I wish they were more affordable.

    Boxers are the way to go!

    • Familiarity: I gave it as a gift but have feedback to share
    • Fit: Runs small

    Got for a friend because she loves boxer style undies under base layers for skiing and cold adventures. Adds a little extra warmth and coverage. Additionally, she raved about the quality of the fabric and the fit. She also mentioned it runs a little small too which might cause it to ride up. Still highly recommended for comfort/material/quality.

    Rockin' errywhere.

    • Familiarity: I've put it through the wringer
    • Size Bought: Small and Medium
    • Height: 5'9"
    • Weight: 135lbs


    I fouuuund you, Phase SL cuties
    Get it together and bring it back to me
    Hit the climbing gym, flash a route or two
    Ski a couloir in 'em theeennn see what it do

    Get it right, light boxers that fit just right
    Get it right, fabric that is oh-so-light
    Get it right, though they are a little tight
    Skier chicks, they love these with all their might

    Yeah anyway these are absolutely the best thing you'll ever put on your butt, especially if you have a skier's build and hate leg openings that roll up. The fabric is INCREDIBLE--sooooooo breathable and comfy. No wedgies/riding up/falling down. Not much leg coverage, but they don't bunch and have no VPL in the vast majority of pants. Get them.

    My butt is in love

    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: Medium
    • Height: 5'6"
    • Weight: 140lbs

    Super comfy, non-bulky, stay in place all day without digging in, crawling up my butt, or being uncomfortable. Got them on sale (because honestly, that's a lot for underwear), liked them so much, I bought 3 more pairs.

    Good, but...

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: Medium
    • Height: 5'6"

    Good product, but the material is much thinner than I expected. Also less flattering under athletic pants than I had hoped.

    Careful with sizing

    • Fit: Runs small

    I usually wear a size medium in something like this (all my stoic boy short's are mediums and they fit great) but the mediums in these ride a little lower than i'd like in the back, and if you re-adujust the back then you loose some leg coverage. Thus I'd think about using your pants size (I would usually get a large) rather than underwear sizing (am I the only one who thinks these two things differ?).

    Having said that - these FEEL AMAZING and are simply the best material for something like this that I've tried. They are super comfy, and great to have - especially if you can pick them up on sale. 45$ is a little steep in my opinion for something like this considering other brands start at around 25. Yes, I know you make great stuff Arc'teryx - but really -- make your prices for stuff like this a little more reasonable? please?