100% Polyethylene TSLA Women's Swim Shirts designed for water sports & activities. [Materials] 100% Polyester fabric has a soft hand feel, durability, breathability, moisture-wicking, quick-drying properties. [Stretch Fabric] Elastic stretch fabric provides nonrestrictive performance and enhanced mobility. [V-Neck Design] Classic V-Neckline provides stylish and comfortable fit. [UPF 50+ ] Sun protective fabric protects your skin from harmful UV rays by more than 99%. TSLA Gear #1 ranked brand in numerous categories on AMAZON.COM Size Chart (FSR25, FSR27) X-Small : Length 61cm, Chest 85cm, Sleeve 35.5cm Small : Length 63cm, Chest 90cm, Sleeve 37.5cm Medium : Length 65cm, Chest 95cm, Sleeve 39.5cm Large : Length 67cm, Chest 100cm, Sleeve 41.5cm X-Large : Length 69cm, Chest 105cm, Sleeve 43.5cm XX-Large : Length 71cm, Chest 110cm, Sleeve 45.5cm Size Chart (FSS02) X-Small : Length 59cm, Chest 82.8cm, Sleeve 16cm Small : Length 61cm, Chest 87.8cm, Sleeve 17cm Medium : Length 63cm, Chest 92.8cm, Sleeve 18cm Large : Length 65cm, Chest 97.8cm, Sleeve 19cm X-Large : Length 67cm, Chest 102.8cm, Sleeve 20cm