SPEEDO Women's Spliced Rashguard w/Zip Pocket Built with Xtra Life LYCRAu00ae fiber: Constructed to have 5-10 times more durability than ordinary spandex fabrics. Provides resistance to suntan lotions, skin oils and chlorine better than conventional fabrics. Helps resist sagging and bagging, keeping swimwear fitting durable swim after swim. UV Block the Burnu00ae with UPF 50 protective fabric features: More body coverage for greater sun protection. Tighter knit fabric for higher level of protection from the sun's harmful rays. Improved fit so over-stretched product does not decrease the UPF rating. Back zip pocket. Short sleeve, loose fitting with contrast side splice for a slimming effect. Lightweight and quick drying. For a tighter fit, purchase a smaller size.