Just don't.
The onesie I received wasn't anything like it was described on the website and while they were happy to give me a full refund I would need to send it back to them first which would be at an extortionate cost that they will not refund. The only other option is to keep the useless onesie and they will refund 10% of the purchase price but none of the delivery charge! The only reason they are getting one star is that while their emails aren't very helpful, they are very polite, and I have to give at least one star to leave a review.