VIONIC. ALANA BLKNB. ALANA CHELSEA BOOT. BLACK NUBUCK. With a sleek modern silhouette Alana s a bootie-bestie you ll step out with season after season. A podiatrist-designed footbed delivering unique THREE-ZONE COMFORT is built into every pair of Vionic sandals slippers active shoes and flats which promotes stability from the ground up. Helping to relieve flat feet high arches bunions heel spurs and lower back pain issues.