Vionic Spark Whisper Ballet Flat Size: 10 Color: Light Grey The Vionic Spark Whisper ballet flat is a classic silhouette upgraded for wellness on the go. Perforated detailing across the nappa‑leather upper adds airy texture and style while Vionic's signature Vio‑Motion three‑zone comfort system pampers every step with a deep heel cup, plush forefoot cushioning, and orthotic arch support in a removable microfiber‑covered EVA footbed. A flexible rubber outsole and barely‑there 0.25" heel keep each stride light yet stable, and the pull‑on design makes getting out the door effortless. Supportive flats, arch‑support shoes, orthotic ballet flat