SwimZip Sun Protective SwimwearSwimZip sun protection swimsuits, swimwear, rash guards, and swim trunks offer the best in style and sun protection. The Skin Cancer Foundation states that clothing is the most effective form of sun protection … and SwimZip bathing suits have a UPF (SPF) rating of 50+ to keep your skin protected in the sun.Sun Protective Swimwear Selection ThoughtsWhen it comes to choosing swimwear with UV protection, the most important factor to consider is how much ultraviolet light it blocks. SwimZip materials are made of the highest quality and independent testing has shown our swimsuits and rash guard swim shirts block 99% of those nasty cancer causing UVA and UVB rays. During the summer, in places like the pool or beach, where the sun and UV rays are especially intense, there is no substitute for getting the most UV protection possible. Of course, when out by the water, staying in shade and wearing broad-spectrum sunscreen is also important.In addition to thinking about UPF rating, it is also important to consider material quality, fit, and design. SwimZip brings the most fashionable looks with the most innovative design features. For example, our signature full zipper down the front of our rash guards makes it so easy to put them on and take them off. We also offer a collar on our rash guard sun shirts to protect the skin on the neck, back, and shoulders from the sun. SwimZip swimwear also offers long-sleeve swim shirts to keep arms protected.Finally, fit should also be kept in mind. SwimZip sun shirt material is incredibly soft and comfortable – and we designed the fit to be worn almost like a regular shirt. Stretching out a rash guard, in other words wearing it too tight, can actually let sunlight in. Our 4-way stretch SwimZip swim shirts are created to keep 99% of UVA and UVB rays out!