Smartwool Short Sleeve Button Down - Men's Black Small BLACK-S. Its regular fit lets you move freely without bulk and it brings the benefits of responsibly sourced Merino wool: moisture management odor resistance and temperature regulation. And because the fabric is blended with recycled polyester it'll dry quickly and last. The next time you need to up your style yet still be casual take this button down out for a spin. Specifications for Smartwool Short Sleeve Button Down - Men's: Manufacturer: Smartwool Age Group: Adults Gender: Male Package Contents: Smartwool Short Sleeve Button Down - Men's Smartwool SW016963L401N-L: Short Sleeve Button Down - Men's Fox Brown Large Smartwool SW016963L401N-M: Short Sleeve Button Down - Men's Fox Brown Medium Smartwool SW016963L401N-S: Short Sleeve Button Down - Men's Fox Brown Small Smartwool SW016963L401N-XL: Short Sleeve Button Down - Men's Fox Brown Extra Large Smartwool SW0169630011-(001) BLACK-L: Short Sleeve Button Down - Men's Black Large Smartwool SW0169630921-S: Short Sleeve Button Down - Men's Deep Navy Small Smartwool SW0169630921-M: Short Sleeve Button Down - Men's Deep Navy Medium Smartwool SW0169630011-(001) BLACK-M: Short Sleeve Button Down - Men's Black Medium Smartwool SW0169630921-L: Short Sleeve Button Down - Men's Deep Navy Large Smartwool SW0169630011-(001) BLACK-XL: Short Sleeve Button Down - Men's Black Extra Large Smartwool SW0169630921-XL: Short Sleeve Button Down - Men's Deep Navy Extra Large Smartwool SW0169630011-(001) BLACK-S: Short Sleeve Button Down - Men's Black Small