- Our Black Calf is a 15-inch tall Women's Signature Series™ boot with a snip toe and a western long base heel. They also have Premium Cushion insoles and are handcrafted in the USA.Upper:15" BLACK CALF TOP. Foot: Toe, SnipHeel:47 Heel, 1 3/8" Height Western Long BaseInsole:PREMIUM CUSHION. Outsole:LEATHER. Our SIGNATURE boot.