FLEXIBILITY keenbellows flex is a proprietary technology that features built in flex to allow bending where other boots crack and weaken over time WATERPROOF KEENDRY waterproof breathable membrane keeps your feet dry and comfortable all day long by allowing vapor out without letting water in TRACTION SUPPORT keen allterrain rubber outsole provides high traction grip in all environments with 4mm multi directional lugs non marking rubber outsoles leaves no trace when walking indoors the stability shank provides support on uneven surfaces FIT COMFORT environmentally preferred leather with ripstop mesh made of recycled plastic offers all day comfort CARE TIPS gently brush the footwear with a soft bristle brush or hand towel to remove loose dirt and debris stains can be treated by lightly rubbing a gum eraser in a circular motion over the location and lightly brushing afterward