100% waterproof. The front fabric is a special, fast absorbing, super-fine, fast absorbing and fast drying polyester. It has a middle absorbent layer and a soft feel, durable, waterproof back layer to offer total protection to clothes. Fastening at the back of the neck. Machine washable (40°C) and tumble drier proof. Size bib for teenagers and adults. Measurements: Width (across shoulders): 34cm Length (neck to bottom of garment): 20cm Neck circumference: 40-50cm