Have fun at the beach in the Tommy Bahama Cotton Clip Sleeveless Tiered Dress Cover Up in White. The Cotton Clip Sleeveless Tiered Dress Cover Up by Tommy Bahama is made of 100% Cotton. The Cotton Clip Sleeveless Tiered Dress Cover Up is lined with pockets and finished with thread tassels. For best results, handwash your Tommy Bahama swimwear.