Vionic Aimmy Adjustable Strap Slip-on Sneaker. Keep it casual in style with Aimmy, featuring a knit upper and criss-cross, adjustable hook-and-loop strap for a perfect fit. Vio-Motion Support is an innovative approach to foot health: Vionic conceals biomechanical technology into each shoe. All-day comfort is a difference you can feel. Deep heel cup provides essential stability. Stylish and comfortable footwear that incorporates a podiatrist designed biomechanical footbed.