Buy Havianas all the time. They are great for beach and water because the sand doesn't stick to them and they can get wet.
As usual, Havaianas sandals are extremely comfortable.
Great flip flops for dorms and public showers. When you step on wet tiles with dirty water it doesn't come up through the soles and onto your feet. I hate when that happened with my old flip flops.
Very comfortable shoe.
These are my favorite flip flops. They are durable and comfortable. Amazon has a great selection and the best prices for Havaianas.