MA.STRUM Quarter Zip Sweat combines heavyweight loop-back cotton and a zip neck for comfortable everyday layering. It pairs a soft, textured interior with signature yoke detailing and a detachable fluorescent compass badge for functional style. Key attributes: Frost | Cotton | 380g diagonal-weave construction | Soft loop-back interior | Carbonic finish for soft hand feel | Zip neck with copper rivet | Detachable fluorescent compass ID badge | Quarter-zip neckline | Signature cross stitch on rear yoke | Shoulder compass ID badge detail | Dimensions & fit: Regular fit | Fits true to size | Composition & care: 100% diagonal weave loop-back cotton