Boys' long-sleeve rash guard in tie-dye

blocker, this second-skin rash guard provides UPF 50+ sun protection (think of it as SPF for clothes)—ideal whether he's catching waves all day or just sitting by the pool. Even better: We styled it like a cool T-shirt, so he won't put up a fight when it's time to put it on. Remember, nothing is 100 percent effective against sunburn, so he should apply sunblock as well.