This is a simple but adorable Tommy Bahama tshirt dress from the Summer 2011 collection.  It is new with tags and in excellent condition.  The dress is a size extra small and is a floaty 92% nylon and 8% spandex.  Double layered with short sleeves, scoop neck and a bright raspberry/strawberry color.  This super cute dress could be a swimsuit coverup but can also be worn after your day at the beach.  Some approximate measurements:

Armpit to armpit-17"

Length from shoulder to hem-32"