Durable and comfortable. with a semi-high cut. EN 20349-2 compliant welder boot with Thinsulate lining for additional thermal insulation. Specially treated leather. with heat-resistant para-aramid thread in the seams. Maximum use limit is 400°C and long-term heat exposure limit is 30 minutes. The removable insole has an advanced PORON XRD shock-absorbing two-zone protection and the oil and heat-resistant nitrile outsole provides excellent grip. Aluminum toe cap IN THE FOOT and steel nail penetration barrier help prevent injuries.