The tunic can be worn over your suit, on its own, or with your shorts/capris. The skirt is also a dress, and the scarf can be worn as a pareo, a shawl, a belt, or tied in back, it becomes a top. The capris or the skirt will go with pieces of the set, or with any of your own favourite tops.
After a day at the beach, or poolside, I like to shower, dress lightly and sit on the lanai to watch a sunset and love the ease of the skirt/dress. Wear it alone, or over your bathing suit, or any way you wish, and find most comfortable.
The pieces will go well with your own wardrobe, they wash easily in cold water, by hand or machine, and they dry quickly (45% cotton / 55% poly). It's simple - just hang to dry. The bag can be used when you’re heading to the pool or the beach, or as a purse when you’re out exploring during the day.
With airlines limiting the amount of suitcases, or the weight (and sometimes misplacing your bag), you may simply want to pack the set in your carry-on bag and eliminate the worry on arrival.