Glomall via Amazon offers Prime members the Delicol Cute Superman Pet Costume
with free shipping
. (Non-members can spend $35 or more to bag free shipping.) That's $11 under the lowest total price we could find for a similar costume. It comes in sizes XS to L, and is perfect if you named your dog Clark Kennel.
Note that this item is part of Amazon's "Add-on program"; it can only be purchased with an order of $25 or more.
: Size XS has dropped to $3.80
; sizes S to L are still available for $4.