Looking for a simple way to add some color or texture to your off-duty kit without adding more layers or bulk? Try a necklace. These here have everything you'd want out of a piece of men's jewelry. They're not too flashy or too feminine. Crafted from a range of materials—from cooling sandalwood and African glass to semi-precious stones and oxidized silver—they're understated, while projecting a laid-back bohemian vibe. Which is what summer style is all about, right? Clip one under an open oxford collar or a cotton V-neck tee and you're set.