Smartwool Classic All-Season Merino Base Layer Crew Plus - Women's Nightfall Blue 2X. Its designed for comfort with a lightweight Merino jersey fabric that brings softness temperature regulation and moisture management. And its designed for durability with a recycled nylon core thats built to last. Put all of that right next to your skin and youll have the right start to the rest of your day no matter if your adventure takes you to the ice skating rink a walk through the park or an intense afternoon of snowshoeing. Specifications for Smartwool Classic All-Season Merino Base Layer Crew Plus - Women's: Manufacturer: Smartwool Women's Clothing Size: 2X Age Group: Adults Apparel Fit: Slim Gender: Female Color: Nightfall Blue Application: Outdoor Fabric/Material: Recycled Nylon Merino Wool Features of Smartwool Classic All-Season Merino Base Layer Crew Plus - Women's Our lightweight Merino jersey fabric uses a recycled nylon core while still keeping 100percent Merino wool next to skin Package Contents: Smartwool Classic All-Season Merino Base Layer Crew Plus - Women's Smartwool SW016914P43102X000: Classic All-Season Merino Base Layer Crew Plus - Women's Nightfall Blue 2X