Double click on above image to view full picture More Views Smartwool PhD Nordic Socks - Ultra Light Cushion Availability: In stock $19.95 * Required Fields *Color Choose an Option... *Size Choose an Option... Qty: Add to Cart Details The most innovative Nordic sock around in an ultra light cushion. SmartWool added ReliaWool™ Technology in high impact zones to increase durability, without the bulk. You'll also get an incredibly secure and comfortable fit above and below the heel, under the arch and across the instep thanks to the new 4 Degree Elite Fit System. Men's sizes listed. Women, please order a size down. + Email to a Friend