My grandson loves Lego and Jurassic World so this was the perfect gift for him. It was quite difficult to determine what size to order based on the reviews. I ordered size 12. The sleeve length is 19 inches. The length from the back neck seam (under the collar on the robe) to the hem is approximately 32 inches. The bathrobe is not thick, but should go well with the pajamas. The fur is very soft. Washed and dried normally (on the lowest setting). Hope this helps others trying to figure out the size.
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