Quietly bombproof meets warmth-without-overheating to create a ruggedly cozy midweight jacket with a snap front. Natural merino performance on the skin side, lightweight Alpha 60 breathable insulation in the middle and Strongtwill protection on the outside. Zero snaps at the front, low pros at the cuffs, plus merino lined hand warmer pockets all lock in that dry and comforting kind of warmth the Alpha60core setup brings.
Anarcius is 6'1", 145 lbs and wears size M in Dark Olive. Worn with Futuregliders in Dry Tan.

Strongtwill Alphacore

Fabric Story

A strong yet breathable insulation system. Midweight with a rugged yet clean Strongtwill exterior, super breathable Alpha 60 insulation in the middle and a soft and dry nylon-core merino on the inside.

Alpha is a US mil-spec insulation optimized for extreme breathability to create a nice amount of warmth without overheating. Because Alpha is optimized to be a non-migrating insulation it can be paired with much more breathable face and lining fabrics than most insulations (which require very tight faces to keep the insulation materials from leaking out.)

The nylon-core merino interior keeps things soft and dry with all of the natural performance of merino. On the outside is the quietly bombproof Strongtwill with an C0 Zelan R3 DWR treatment for quick drying and light water resistance. This combination traps a nice amount of warmth but begins to dump heat before things get too hot. Works for indoor use if you run cold, but mostly we recommend it as a standalone piece of SF/London/Fall type weather (and colder more if you run hot) and as part of a cold weather layering set up.

  • Fiber Content

    • Strongtwill: 96% Nylon, 4% Elastane
    • Polartec Alpha 60: 100% Polyester
    • Nyloncore Merino: 89% Merino, 11% Nylon

  • Fabric Origin

    • Sweden
    • United States
    • Thailand

  • Finishing

    Zelan R3 fluorocarbon-free F0 DWR

Size Chart

in Inches | Measured Flat

SizeXSSMLXLXXL
Chest21.7522.7523.7524.7525.7526.75
Shoulder20.52121.52222.523
Sleeve Length33.7534.2534.7535.2535.7536.25
Length26.2526.87527.528.12528.7529.375
Anarcius is 6'1", 145 lbs and wears size M in Dark Olive. Worn with Futuregliders in Dry Tan.

  • Made in

    Manhattan

  • Product Weight

    1010GSize M

  • Hardware

    • Cobra Zero snaps, made in Italy
    • Cobra low profile snaps, made in Italy

  • Pockets

    • Two merino lined hand pockets
    • One external chest pocket on the wearer’s left

  • Construction Details

    • Snap close placket with finger garages
    • Two point snap close cuffs
    • Hanging loop
    • Black Lightning 2” woven label on chest pocket
    • Black swan woven label on wearers inside left

Revision History

  • October 2024:
    • Initial Release
    • Name: Strongtwill Warmshirt
    • Colors: Charcoal, Dark Olive, Concrete, Winedark

WARMSHIRT Guide:

  • Washing

    • Machine wash warm
    • Do NOT use fabric softener

  • Drying

    Tumble dry low

  • Ironing

    Iron low

  • Dry Cleaning

    Do not dry clean

Photos by Jon-Paul Rodriguez

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