An absolute slop soup of magzips experiment [#596], in the form of a mercerized cotton highzip hoodie. The side seams splay open from hem to forearm and close (sometimes) with Systemmag magzips, as does the front. But when you get this many magnets together it’s more like a party than a closure, chaos not composer. Strictly for the crazy ones, this thing will never close completely when on the body, but it just might do weird and wonderful things.
Expected Tuesday, July 21st, 1pm NYC. $600

Mercy/co

Fabric Story

A cooler cotton take on a sweatshirt fleece, optimized for structure and breathability. 100% cotton, knit in Italy in a classic terryback fleece structure. At ~350gsm this is very much a midweight sweatshirt fabric, with one crucial point of distinction, mercerization.

Mercerization is one of the first performance fiber techniques of the industrial age. Invented in 1844 by John Mercer, it uses sodium hydroxide to burn the stray fuzziness off of the cotton yarns, leaving a smoother surface. It is quite common at the yarn level, especially for shirting fabrics, but the Mercy/co applies it to knit fabric, and at the fabric level, after knitting but before dyeing.

A smoother cotton means more airflow and less insulation, and it also slows down moisture absorption. All three of these combine to make a cooler and less clammy cotton, without sacrificing any of the structure that makes heavier sweatshirt fleeces feel so protective and comforting.

  • Fiber Content

    100%Cotton

  • Fabric Weight

    350GSM

  • Fabric Origin

    Knit in Italy

  • Fabric Construction

    Terryback sweatshirt fleece

  • Finishing

    Mercerized at the fabric level

  • Breathability

    Modest overall but very good compared to other sweatshirt fleeces

  • Stretch

    Knit mechanical stretch

  • Shrinkage

    Wash cold and dry flat to avoid shrinkage. Expect around a full size of shrinkage and potential warping around the zipper if machine washed and dried

Size Chart

in Inches | Measured Flat

Systemmag magnetic "zipper", made in France

  • Made in

    New York City

  • Hardware

    3 Systemmag magnetic "zippers", made in France

  • Pockets

    Two hand warmer pockets

  • Construction Details

    • Splay open magnet side seams
    • Cotton rib cuffs

  • Style Number

    K575

Revision History

  • July 2026:
    • Initial release
    • Name: Mercy/co Magslop Hoodie
    • Colors: Black
Splay open magnet side seams
Hand warmer pockets

  • Washing

    Hand wash cold

  • Drying

    • Dry flat
    • Do not tumble dry

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