Smithsonian Running Singlet

Our running singlet is made from our lightest Italian performance fabric: UPF 50+, soft, sweat-wicking, and 4-way stretch. The fully sublimated design means there is no sticky logo and leaves you to run free. 's --> Shirt Specifications Men's Sizing Women's Sizing UPF 50+ Soft, sweat-wicking 4-way stretch Water-based ink Men's Sizing Guide XS S M L XL Chest (in.) 31-34 34-37 37-40 40-44 44-48 Waist (in.) 28-30 30-32 32-35 35-39 39-43 Singlets run true to size for most; we suggest going with your typical size for any activewear top.  If you measure between sizes, choose the smaller size for a closer fit or the larger size for a looser fit. Women's Sizing Guide XS S M L Chest (in.) 29-32.5 32.5-35.5 35.5-38 38-41 Waist (in.) 23.5-26 26-29 29-31.5 31.5-34.5  Singlets run true to size for most; we suggest going with your typical size for any activewear top.  If you measure between sizes, choose the smaller