Nickelodeon Paw Patrol Baby Boys Three-Pack Bodysuits

I bought this in 3mth size for my newborn to wear at his brother's Paw Patrol birthday party... My son is 8wks old and just started wearing 3mth clothes. I'm disappointed that these run so small, they are tight on him (other 3mth clothes are not tight). Definitely order up a size! Also, I washed these once before my son wore them and the print is already cracking - not good quality. Hoping the print lasts at least a few more washes.