THIS ONLY FIT LITTLE PUPP Y, NOT FOR BIG DOGS Please select the shoes according to the dimensions provided. This pet boots can be a perfect gift for giving your lovey puppy abeautiful and warm enjoyment.MEASURE STEPS: ?1. Place your pet on the floor plate or a piece of paper ?2. Lift her/his opposite paw to let the weight on the paw that is being measured ?3.Measure the width from the outer edge of the two outside ?4.Measure the length of the paw beginning with the back of the large base pad to the end of his toe nailsDog Shoes got 5 sizes for your choice: XS/S/M/L/XLSize: XS (Size 1)---XS fits dogs weighing about 1.1 to 2.2 Pound . Sole Size: 4.3 x 3.4cm/1.7" x 1.3"(L*W); Fit Paw Size: 3.3 x 2.6cm/1.3" x 1"(L*W). Size: S (Size 1)---S fits dogs weighing about 3.3 to 4.4 Pound .Sole Size : 4.7 x 3.8cm/1.8" x 1.4"(L*W); Fit Paw Size : 3.7 x 2.8cm/1.4" x 1.1"(L*W) Size : M (Size, 3)---M fits dogs weighing about 4.4 to 7.7 Pound .Sole Size : 5 x 4.2cm/2" x 1.6" (L*W);Fit Paw Size : 4 x 3.2cm/1.5" x 1.2'' (L*W). Size : L (Size 4)---L fits dogs weighing about 7.7 to 9.9 Pound .Sole Size : 5.6 x 4.7cm/2.2" x 1.8"(L*W); Fit Paw Size : 4.6 x 3.7cm/1.8" x 1.4"(L*W). Size : XL(Size 5)---XL fits dogs weighing about 9.9 to 13.2 Pound . Sole Size : 62 x 50mm/ 2.4" x 2"; Height : 60mm/ 2.4".NOTE:Please allow 0.1 inches differs due to manual measurement.According to the second picture, measure your dogs? right size and choose the suitable one. Dog socks should fit snugly, please choose a close size. If you are in between sizes choose the larger size.