Vionic Upright Trinity - Heeled Ankle Bootie. Trinity gives the high ankle bootie a modern touch in its full grain leather upper designed with adjustable criss-cross ankle straps and metal buckle detail. Full-contact support hugs your foot's curves. Vionic's Elevated Support technology gives you comfort and style in their wedges and heels. Heel seat stabilizes and positions foot. Stylish and comfortable footwear that incorporates a podiatrist designed biomechanical orthotic.