West Blvd Saigon Slouchy Mid-Calf Flat Boots Shaft measures approximately 13.5 from arch MATERIAL: Synthetic Suede MEASUREMENTS: Shaft Height~13.5 LIGHTWEIGHT: Ultra lightweight design featuring a buckle enclosure to perfectly hug your feet. COMFORT IN EVERY STEP: These boots don't have to feature thick, heavy soles to be comfortable or safe to wear! This pair is perfectly designed for steady steps, as it features a single, slim sole that ideally balances the heel height with the rest of the sleek shoe design.