Colorfulhouse Labrador Husky Waterproof Shoes for Medium to Large Dogs, 5(2.7x2.2-Inch), Black, 4 Pcs Molded rubber bottom: non-slip and waterproof Elastic straps with reflective tape for safely walking at night Cute pet paw Embroidery The size is the size inside the boots, not boots size outside; Choose size according to width is better Size reference: size 4 for 30-42 lbs; size 5 for 40-55 lbs; size 6 for 52-65 lbs; size 7 for 63-75 lbs; size 8 for 74-88 lbs