People don't wear outdoor shoes in the house in Hawaii, so if going to a party, it helps to have some nice indoor shoes to wear if your outfit looks ridiculous with you barefoot.  I really like this "smoking slipper" style, so I bought 2 pairs in the floral and one pair in the polka dot.  The reason for 2 pairs of the floral is one pair I'll save for later on ... these are just what I need for going to friends' houses, and they obviously fit into Island Style attire without looking silly.  I'm a fan of Acorn.