From Dr Martens' website:
We took the rugged commando tread and military style of the jungle boot, and put our 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.

• Two ways To fasten: removable Laces, or a front zip
• Built on the rebelliously comfortable Dr. Martens Airwair™ air-cushioned sole
• Sole is slip-resistant with superior abrasion, and is oil and fat resistant, too
• Classic Doc's DNA is in full effect, with visible stitching, grooved sides and a scripted heel-loop
• Platform height is 1.5", and heel height is 2"

Dr Martens - SINCLAIR Black Aunt Sally Leather Boot SKU number: 22564001