Women's Vionic Willa Slip on Flat (REGULAR & WIDE WIDTH) Size:9.5 Arch: Semi-rigid polypropylene support shell

Arch:  Semi-rigid polypropylene support shell with 2 degree medial post

Designed as a lace-up tennis shoe that is instantly recognized as an authentic Birkenstock

1st Ray Technology promotes better forefoot mobility and gait efficiency

Built to perform from the gym floor to the turf to the concrete

fast-drying

Women's Vionic Willa Slip on Flat (REGULAR & WIDE WIDTH) Size:9.5 Arch: Semi-rigid polypropylene support shellThis elegant flat style loafer leads the way from office to cocktails; show up in swanky suede or new statement making calf hair! Upper: Leather or Printed Calf Hair. Footbed Lining: Removable PU Covered EVA. Outsole: Durable Rubber. Heel Height: 0. 57". Vio Motion Technology is designed to hug your arches and support your feet in comfort. Vionic sandals' built in orthotic is shown to be effective in helping to treat heel pain (plantar fasciitis).*