Thank you for looking. This is a 3-piece set of innerwear made of stocking material: ① long-sleeved, ② sleeveless, and ③ sleeveless turtleneck. It has considerable stretch, fits snugly to your body, and is warm despite being extremely thin. Light, thin, and warm. It has considerable stretch and is thin. It won't interfere with your outfits, allowing you to enjoy winter fashion. Size ① Long-sleeved Body width 20cm x Length 65cm x Sleeve length 42cm ② Sleeveless 20 x 60 ③ Turtleneck 20 x 60 Turtleneck part 15cm Measurements are taken flat and are approximate. It stretches considerably when unfolded, but measurements are taken as is (in its unstretched state) from purchase.