Long-sleeved sun shirts like the one above are great for giving your skin some rest from a long day of being in the sun, and can make a great simple summery outfit. The one above is from Jcrew, and says summer through the coverup neckline, blue and white color scheme, and thin linen fabric. Below are some more like this one!
~White off the Shoulder from Zara
~Off the Shoulder top from HotHeads boutique, USVIs
~Blue and White stripped shirt from Tommy Hilfiger