How to find a dog halloween costume online<br>Determine your dog's basic size. Many manufacturers keep to standard sizes like small, medium, or large; occasionally branching out to x-small or x-large. So it's important to first establish which category your dog falls under.
Medium size dog will not fit in small size costume 
Small size costume would be too small for medium size dog
( z1 fit :polarity - :ARG1 ( z2 dog :mod ( z3 size :mod ( z4 medium ) ) ) :ARG2 ( z5 costume :mod ( z6 size :mod ( z7 small ) ) ) )