These safety trainers S-3, Claus Model, are made of blue microfibre and have a waterproof treatment an a water resistant lining. They have a flexible anti puncture midsole and provides a strength of up to 1,100 Newtons. They are perfect for every time of the year and any sector. They are a very good quality product which brings comfort and peace, as well as resistance. Available sizes from 35 to 48 (EU).