Overcast Chelsea Mens Olive Boots size au12 eu31 us13 are a striking colour and are a striking colour and the soft rubber and internal footbed makes them so comfy FEATURING 100% Waterproof Natural hand lasted rubber upper with a four way stretch outer shell ASTM approved chemical and slip resistant non marking and self cleaning deep lug outsole Eco friendly thermo molded EVA foot bed An Aegis anti microbial odor protection insole Moisture wicking neoprene foam pad Comfort rated from temperate to 40F or sub zero conditions These men's rain boots will bring versatility to your everyday DuraFresh bio technology that activates to fight unwanted odors