Yes our tops can be used for swimming, but please note that if you are swimming in a pool, depending on the chlorine level(s), the fibers will eventually breakdown, reducing the cooling element as well as the clarity of the print and or solid color. Chlorine will wither any fabric whether it is a poly, nylon or cotton based yarn, chlorine will slowly erode the fibers and it's features. The nylon based yarn we use at IBKÜL will hold up to these elements for a longer length of time than poly or cotton but will eventually breakdown the fibers over time. This is true with any swim garment.