Round Neck Design: The round neck size has been carefully designed to ensure easy take off & on, and no stuck in the neck. Half Sleeve: The 1/2 sleeve design offers more body coverage and protects you against rashes, abrasions and harmful ultraviolet rays. Raglan Sleeve: No shoulder seam raglan sleeves allows a wider underarm fitting, freedom of movement and a casual sporty look. No Built-In Bra: No bra lining, you can wear your favorite bikini top or sports tank top underneath. UV Protection: UPF 50+, the rash guard shirts can effectively protect against UV rays.