The accelerate s3 is a non-metallic safety trainer with a composite toe and an src rated slip resistant rubber outsole. Flexible and lightweight non metallic sneaker. Removable pu foam footbed. Mesh lining for added breathability and comfort. Water resistant esd safety trainer. Composite fiber glass toe protects against impact and compression of 200 joules. Srx best-in-class, slip-resistant rubber outsole reduces the risk of slips and falls on low traction surfaces. Energy absorbent heel. Fuel and oil resistant outsole. Antistatic to prevent the build up of static electricity. Heat resistant outsole to 300 degrees.