M's Alpha Insulator Short

3 reviews
Size Guide
Dune Camo
Deep Navy
4 items left
  • With a full-length side-zip for easy removal or layering, the new Alpha Short is a clutch piece for frigid resort laps, long sled-skiing days, chilly alpine starts, or relaxing at a backcountry hut. Featuring the lightweight, breathable, and quick-drying Polartec Alpha, the active insulation will maintain critical warmth for your knees and legs without bunching at your boots. Wear these shorts under (or over) your shell pants for additional comfort and safety on cold days.

  • FIT: Active

    INSEAM: 13 in (size Medium)


    • Sam is 6'2"/188cm wearing size Large
  • FACE FABRIC: Recon AIR lightweight 2-way stretch mini rip-stop | 100% nylon | acyrlic coating | 53 g/m2 | 20D/20D

    INSULATION: 80g Polartec® Alpha® Insulation | 100% Recycled Polyester

    LINING: Recon AIR lightweight 2-way stretch mini rip-stop | 100% nylon | 53 g/m2 | 20D/20D

    WEIGHT: 240 g (8.5 oz)


    GUARANTEE: Strafe 2 Year Warranty

zipping off the mens alpha insulator short on a ski tour


  • Lightweight, over-knee, zip-off short with active insulation.
  • 100% recycled, quick-drying, breathable, and lightweight Polartec® Alpha® insulation.
  • Highly air-permeable stetch face fabric aids breathabiilty with an acryclic coating to repel light weather.
  • Thin, 4-way stretch waistband for layering comfort.
  • Full-length side zippers with snap button closure and waist adjustment.
  • Articulated knee for unrestricted movement.
  • Open welt hand pockets with zippered card pocket in right hand pocket.
  • Water resistant and reliable YKK® Coil zippers.

Customer Reviews
5.0 Based on 3 Reviews
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Filter Reviews:
    United States United States
    I recommend this product

    Best insulated shorts out

    Love these shorts. I’ve owned many different brands of insulated shorts but the strafe version take the cake.

    • What is your favorite mountain or place to ride? Canada
    Robertson P.
    United States United States
    I recommend this product

    Exactly what I needed

    I run pretty hot when snowboarding in the backcountry or the resort and typically wear just a single baselayer under my shell pants. This can be problematic when large temperature swings are expected during the day, especially on long tours when I have an early morning start but will still be out in the hotter part of the afternoon. These insulated overpants have been a great solution. On very cold mornings I'll start a tour with these over my shell pants (you won't win any style points this way but who cares) and zip them off once it's warmed up enough. I also wear them when resort riding, over a baselayer, on really cold days and love that I can zip them off without having to take off my boots if it gets hot later in the day. They pack down nice and small to carry in the pack when not worn. Highly recommended!

    • What is your favorite mountain or place to ride? Mammoth Mountain, CA
    Canada Canada
    I recommend this product

    Game changer layer

    Such an amazing layer. Perfect for any approach day on the snowmobile. Once you're ski touring, the full leg zips make the shorts super easy to remove without having to drop trousers. Also amazing on cold hill days. I have a hard time NOT wearing these shorts now! Stoked to use them in the summer on the cold west coast as a post-surf kit too.

    • What is your favorite mountain or place to ride? BC