Fit and Design: Regular fit Set-in sleeves that reach the elbow Smooth jersey fabric is comfortable against the skin and slides easily under layers Flat-seam construction throughout that prevents chafing Stretchy crewneck rib-knit collar for easy on/off Underarm gussets increase movement and comfort Drop-tail hem for extra coverage Fun graphics featured on some colors Technology: HeiQ(R) Pure odor control 40+ UPF sun protection Additional Details: Made in a Fair Trade Certified(TM) factory, which means the people who made this product earned a premium for their labor Fabric is certified as bluesign(R) approved