Merino is active fibre that reacts to changes in body temperature it helps you stay warm when the weather is cold and cool when the weather is hot flat seam for comfort dipped hem wont ride up for flattering coverage thumb holes to stay in place item details model height5ft 10178cm model is wearing size8 style product shapetops sleeve lengthlong sleeve tog value2 star added stretch recycled polyester care and composition composition 32 polyamide 30 merino wool 26 lyoce