UGG Classic Ultra Mini Boots combine a reversed shearling and suede upper with a sheep-wool insole for compact, warm winter wear. Key attributes: Black | Ovine leather | Sheep-wool insole | Reversed shearling and suede upper | Rounded toe | Dimensions & fit: Shaft height: 9 cm | UGG size conversion (shoes): 5US = 3 UK; 36 EU; 5.5US = 3.5 UK; 36.5 EU; 6US = 4 UK; 37 EU; 6.5US = 4.5 UK; 37.5 EU; 7US = 5 UK; 38 EU; 7.5US = 5.5 UK; 38.5 EU; 8US = 6 UK; 39 EU; 8.5US = 6.5 UK; 39.5 EU; 9US = 7 UK; 40 EU; 9.5US = 7.5 UK; 40.5 EU | Composition & care: 100% Ovine leather | 80% Wool | 20% Lyocell | 100% Polyester | 100% Rubber