Safety shoes Cofra Gasket Smart and durable safety shoe with the original BOA® Fit System. The upper in Techshell material is water-repellent, breathable and extremely durable. A soft and shock-absorbing insole distributes the pressure from the foot to the entire sole, providing instant comfort. The outsole is shock-absorbing and slip-resistant. TPU ProNose for extra durability and ESD-approved.