This is a staple body style from Warehouse, crafted on vintage low-gauge knitting machines—equipment said to be even rarer than the renowned loopwheel machines. Knitted using #12 slub yarn to create distinctive tonal variations, this fabric is known as "Shadow Border"; though ostensibly a solid color, it features subtle, faint horizontal striations that gently emerge across the surface. Rather than adopting an exaggeratedly deep, modern neckline, the design incorporates piping within the ribbed collar to ensure durability; as the garment is worn and broken in, the neckline gradually relaxes, naturally settling into a comfortable, gentle drape.