The Caterpillar Streamline series is amazingly comfortable. It is the best of both worlds. Imagine an ultra light sneaker that also happens to have a composite safety toe. This sneaker is made with a flexible polyurethane mesh upper. The inside is lined with soft durable mesh lining. The Nylex molded EVA insole is pure cushion. Put that on top of an already thick cushion midsole and you have a super comfortable boot. This slip resistant boot comes standard with an ASTM rated composite toe. Get it now, these ones sell out quick and often.