Velco on pet puffer vest with NASA Worm Logo and hoody. Includes a collar hole cutout for convenience of leashing and a NASA Worm Logo poop bag that clips on vest. 

Pet length guide: (individual fit may very, this is suggested size guide only)

Small: up to 15 lbs / back length 9" - 12" / chest girth 13" - 15"

Medium: up to 25 lbs / back length 14" - 18" / chest girth 15" - 20"

Large: up to 40 lbs / back length 20" - 24" / chest girth 20" - 25"

X-Large: up to 60 lbs / back length 22" - 26" / chest girth 25" - 30"