UPF 50 sun protection technology blocks 98 of the suns harmful ultraviolet rays helping your kids enjoy the sun safely The stylish printing and active stretch fabric bring sporty style to these readytoplay kids The arc splicing sleeve design also adds a feeling of vitality Thumb loops on the cuffs help to keep the sleeves firmly in place Raglan style sleeves and crewneck for an easy on and off experience Flat lock seams and tagless collar minimize friction Fourway stretch fabric enhances the flexibility for kids Ideal for fishing sailing swimming hiking cycling surfing as well as a base layer on cooler days and ideal worn by itself when hot days