Designer follows its own size guide, please refer to the below:.US 4 = UK 1.5/ EU 34.5.US 4.5 = UK 2/ EU 35.US 5 = UK 2.5/ EU 35.5.US 5.5 = UK 3/ EU 36.US 6 = UK 3.5/ EU 36.5.US 6.5 = UK 4/ EU 37.US 7 = UK 4.5/ EU 37.5.US 7.5 = UK 5/ EU 38.US 8 = UK 5.5/ EU 38.5.US 8.5 = UK 6/ EU 39.US 9 = UK 6.5/ EU 39.5.US 9.5 = UK 7/ EU 40.US 10 = UK 7.5/ EU 40.5.US 10.5 = UK 8/ EU 41.Thigh boots.Leather.Block heel.Round toe.Ties at back.Pull on.Supple, stretchy leather.Rubber sole.Made in Spain.The size on t Sleek Thigh High Heeled Boots For Formal Occasions, Sleek Thigh High Heeled Boots For Formal, Sleek Over-the-knee Evening Boots, Elegant Tall Over-the-knee Heeled Boots, Elegant Knee-high Faux Leather Platform Boots, Chic Calf Leather Over-the-knee Heeled Boots, Chic Over The Knee Calf Leather Heeled Boots, Evening Thigh-high Faux Leather Boots, Fitted Leather Over-the-knee Boots