Dr. Martens Sinclair Leather Platform Boots in White Milled Napa. The brand took the rugged commando tread and military style of the jungle boot, and put their spin on it. The result? The Sinclair, an 8-eye women's boot with tons of tough Doc's attitude, including two ways to fasten — laces and a zipper — plus puritan stitching on the toe-cap and a chunky, empowering platform sole.