UGG M Jld Boot is a rugged winter boot designed for reliable traction and adaptable warmth, featuring a Vibram XS sole and a removable upper. Model 1171351 confirms the M Jld Boot designation from UGG. Key attributes: Black | Leather, Suede | Vibram XS sole for grip and durability | Removable upper | Rear pull tab | High shaft | Dimensions & fit: Comfortable fit | High shaft for ankle support | Composition & care: Leather | Suede | Fabric | Wool | Synthetic sole