Griffin S3 Composite Safety Trainer Shoe by Solid Gear-SG73001 The Solid Gear Griffin is a high tech composite S3 safety trainer shoe that offers a unique combination of durability, lightweight and exceptional comfort. This supreme trainer shoe comes with the new oil and slip resistant Vibram TPU outsole, which offers outstanding grip on ice and snow even in very low temperatures. In addition, premium full grain impregnated leather combines with Cordura ripstop fabric to ensure great water repellency and breathability. Upper: TECH leather with Cordura ripstop, Lining: 3D breathable lining, Outsole: Oil and slip resistant non marking TPU outsole, from VIBRAM, Footbed: Breathable, antibacterial, EVA insole with, Poron pads, Safety standard: EN 20345 S3, SRC, Protection: Composite plate and fiberglass toecap