This cotton fabric is warm and the perfect thickness. It's a loose fit, so it's a shirt that's comfortable to wear even when you take off your jacket at the office or during meals! .......... The cotton fabric is gentle on the skin. Cotton: 95% Polyurethane: 5% Length: 62cm Sleeve Length: 55cm Bust: 100cm (unstretched) The fabric stretches well, but it's not thick, so it's easy to wear.