It is 100% cotton viscose. It does not cause burning or sweating. It is made with high quality fabric and workmanship. The sleeves are buttoned and can be used long or short according to preference. It is recommended to wash the product in a short program at 30 degrees. PRODUCT LENGTH: 76 CM - SIZE 44 CHEST: 110 CM - HIPS: 114 CM. MUSCLE:50 CM-46 SIZE CHEST: 114 CM- HIPS: 118 CM. MUSCLES: 52 CM-48 SIZE CHEST: 118 CM- HIPS: 122 CM. MUSCLE: 54 CM- 50 SIZE CHEST: 122 CM- HIPS: 126 CM. MUSCLES: 56 CM-52 SIZE CHEST: 126 CM- HIPS: 130 CM. MUSCLES:58 CM-54 SIZE CHEST: 130 CM- HIPS: 134 CM. PAZU:60 CM