Women's Siren Traveller 3 Mid Waterproof Size:5.5 The reason is KEEN Patented

The reason is KEEN  Patented Toe Protection where the shoe outsoles wrap up and over the  toes for ultimate protection

Reinforced construction and low-stress seam placement reduce wear and tear

Perforated

Based on your VO2 max

Women's Siren Traveller 3 Mid Waterproof Size:5.5 The reason is KEEN PatentedThis leather trail shoe is designed around the unique shape of a woman's foot and features an extremely sticky Vibram sole for traction even when it's wet. FEATURES Waterproof membrane seals out water and lets moisture escape Full grain leather upper Metal hook traditional lace closure Bellows tongue keeps out debris Breathable mesh lining Kinetic Fit BASE removable contoured insole for flexible support Merrell Air Cushion in the heel absorbs shock