It has a zip placket & a mock collar. The ICE FIL fabric is 92% Nylon & 8% Polyurethane which is designed to keep you cool. It is soft and stretchy, wicks the moisture from sweat, has 50+ UPF sun protection, is fast drying and retains it shape after washing.
Size XS (0 2 4) - Bust is approx 33.5"
Size S (2 4 6) - Bust is approx 36"
Size M (6 8 10) - Bust is approx 39"
Size L (10 12 14) - Bust is approx 42.5"
Size XL (14 16 18) - Bust is approx 46"