Top quality full grain leather is used to make the most technologically advanced Ladies Motorcycle Biker Engineer boot ever. Great classic look of 13 inch engineer biker boot (13 inches from heel to top, full 11 inch leather shaft). Good Year Welt Construction boots (long term durability, resole-able, better comfort when wore in). This is the most technologically advanced ladies biker boot built for long-term durability, comfort, and protection. Exclusive to LeatherUp.