Dr. Martens Boyle grizzly leather slip on shoes men’s size 9 women’s size 10 This men's slip-on shoe is unlined and deconstructed in a heavyweight leather with a light grained finish and a subtle rib detail around the heel. Elastic gussets Rib detail around the heel Made with Grizzly, a heavyweight leather with a subtle grained finish SoftWair™ memory foam liner Grizzly is a heavyweight leather, with a subtle grained finish