Jeffrey Campbell Mercer Platform Heel Shoe Boots. Biker boots are a great wardrobe staple for any girl so how could you possibly resist these great platform heels? Toughen up a girly lace dress or go for the full on biker chick look with ripped jeans and a leather jacket. Featuring wrap around silver buckle straps, and side zip closure. Upper and Lining 100% leather with synthetic sole. Heel approximately 5.5" (13.5cm) with approximately 1.5" (4cm) platform.