size: medium color: gem; dark blue/green material: nylon, polyester, and ionic nylon Slim fit Crewneck Unique knit texture ventilation Made from moisture-wicking fabric with four-way stretch and embedded Ionic+™ Nylon antimicrobial technology for lasting odor protection. Ionic+™ Nylon antimicrobial technology features positively charged silver ions durably embedded into the fabric for lasting protection against odor causing bacteria. estimated measurements 17.5 in pit to pit 26.5 in length shoulder to bottom hem