Men's Dewalt, Flex Moc PT Work Boot. The Flex Moc PT work boot features a flexible outsole that provides underfoot stability while offering the comfort of your favorite sneakers. Safety features include a soft toe that passes ASTM F2892-11 standard and an oil and slip resistant rated Mark II outsole. Leather uppers Lace up closure with 3/4 tongue gusset to keep out dirt and debris Padded collar and tongue for support Aerospace mesh linings ProComfort footbed features ergonomic arch support ProComfort TPU shank EVA wedge soles, with full rubber coverings, are oil and slip resistant