The chrome plated solid brass frame is hand stitched to a soft leather face mask. The nose bridge screw is manufactured using a quality stainless steel. The lenses are made from a good quality polycarbonate that is treated with a scratch resistant coating to prevent damage to the surface. Each lens is housed in an independent frame that can be easily removed from the goggle to allow replacements to be fitted or to simple switch them with tinted lenses if the sun is shining.