Pet Dog Backpack Size:S and spine in ideal alignment

and spine in ideal alignment while sleeping and improves circulation

Removes bacteria deep between teeth and below the gum line where brushing and flossing can't reach

it is your perfect choice

Sizes: L - Fit Neck Circumstance from 15" to 19

sturdy and lightweight base protect your dining table from scratched

Pet Dog Backpack Size:S and spine in ideal alignmentFeatures: Functions as both a harness and backpack Comes complete with a leash Feature a sturdy D ring for easy leash attachment Fashionable Spiderman Pattern and Superman Pattern Perfect for everyday walk and weekend party, or just making your pet look its best Weight: S: 106g ?? M: 115g ?? L: 127g Material:? PU? How to Choose Size? S: Chest: 30 42cm M: Chest: 36 54cm L: Chest: 42 60cm