Keen Men's Ridge Flex Waterproof Hiking Shoe Size:8.5 Heat Trapolator technology: Three layers

Heat Trapolator technology: Three layers of heat-trapping materials underfoot

All Super Birki models are certified for professional use in accordance with EN ISO 20347:2012 OB E (SRC category)

Performance ripstop mesh upper with TPU overlays for durable

Padded collar for comfort

Keen Men's Ridge Flex Waterproof Hiking Shoe Size:8.5 Heat Trapolator technology: Three layersWhat if that 12 mile hike could feel more like 8? That's the joy of flex. KEEN took the trusted fit of the iconic Targhee hiker and paired it with their new KEEN. BELLOWS FLEX technology to reduce the energy each step takes. Flex easier, hike happier in KEEN's men's waterproof hiking shoe. Flexes Easier: The Ridge Flex, featuring KEEN. BELLOWS FLEX, requires 60% less energy to bend so each step feels easier. More Durable: KEEN. BELLOWS FLEX bends