Easy on my shoulders and comfortable when I work out. I remove the underwires and don't know why they don't offer this choice. Just because one has large breasts doesn't mean an underwire is required. They most often just hurt.
The material makes laundry easy. They dry quickly when hung up after washing. I like how easily they pack into my bags when traveling too. These bras can be used for any occasion when you want to get some sun. It's great to be able to take my shirt off  without feeling like I'm offending someone who's uncomfortable seeing "underware"! :)