Free shipping for orders over $75
0 Cart
Added to Cart
    You have items in your cart
    You have 1 item in your cart

    strength is in our dna.

    the toughest outdoor apparel for your toughest pursuits.

    the toughest outdoor apparel for your toughest pursuits.


    strong, vigorous


    The proprietary yarns used in our Fortis fabrics are spun from Ultra High Molecular Weight Polyethylene (UHMWPE) fiber blended with other polymers and knit to create a stronger, lighter, more durable fabric. UHMWPE does not take dye well which gives it a unique look and feel.


    Fortis 115 (90% Polyester, 10% UHMWPE) is ultralight and very breathable. It punches above its weight, matching the tear strength and abrasion resistance of heavier weight synthetic fabrics, and significantly outperforms common 250gsm merino wool fabrics.  

    Use 115 as a spring/summer/early fall light layer to cut the chill and protect from the sun. In cold temps wear it under a midlayer and shell for optionality when your aerobic output varies.

    Fortis 150 (90% Nylon, 10% UHMWPE) is our standard weight offering. Buttery to the touch, you would never know it contains the same fibers as body armor. Stronger fibers create a longer lasting garment.

    Use 150 year round as a more substantial layer than the 115 when you need a little more warmth or better sun protection.  

    Fortis 250 (80% Nylon, 10% UHMWPE, 10% Polyester) is our thermal weight offering. Knit with a beautiful french terry stitch.

    250 excels in all cold climates, wintry seasons, or when you just want a heavier option.


    Fortis 115 fabric is made in Taiwan and then dyed in Los Angeles.

    Fortis 150 and 250 fabrics are made in Los Angeles.

    All garments are cut and sewn in Los Angeles.


    UHMWPE fiber is 15x stronger than steel at the same weight
    Ultralight and ultrastrong so you’re free to focus on your goals, not your gear.
    Highly abrasion-resistant to prevent rips and tears and protects your body from cuts and scrapes.

    Men's Fortis 150 Rock Hoody


    Women's Fortis 150 Rock Hoody