VIONIC. 322SERENA-GRG. SERENA GREIGE SUEDE ANKLE BOOT. The Serena is a fall staple you won t want to take off. This ankle boot will have you moving through your day with ease and comfort. The zipper tassel detail and seam piping add interest to this low-heeled boot. Upper Kid suede. Treated with a protective coating to help against inclement weather. Inside zipper offers slip-on sensibility and a secure fit. Footbed Removable microfiber wrapped EVA. Outsole TR. Heel height 1.8 .