Purchased at Barneys Yokohama. Only stored, never used. It's a short length, so I chose size 2, but it sold out quickly. The color is INK BLACK (sumikuro - a dark charcoal gray). It can be worn in winter in a heated room, and the size allows for layering. The following is a quote: A half-sleeve PO made from AURALEE's standard elastic high-gauge sweat material. This sweat material is made from ultra-long staple cotton yarn, knitted on a rare knitting machine at an ultra-high gauge, and brushed only on the surface. The special washing process gives it a unique, light, and elastic feel, and a beautiful, glossy knit. It's a smooth and light loopback fabric that can be worn comfortably in summer.