Product description. Bike collar, half sleeves, slim fit, breathable fabric basic t‑shirt. Fabric composition. 70% cotton, 30% polyester. Product size chart. Due to manufacturing processes, small differences in measurements may occur. Measurements were taken on a flat surface. Model measurements. Height: 1.74 m, Weight: 52 kg (Model size S). Washing instructions. It can be washed at a maximum of 30 °C. Do not use bleach. Do not tumble dry. Iron at a maximum of 110 °C. Do not dry clean.