Designed to break limits
Our patent-pending Indestructawool™ technology isn’t just something we added to our performance socks, but a whole new way to build them. We’ve developed a new, much more durable knitting technique that enables 30% more choss-fueled approaches, gut-wrenching descents, and paradigm-shifting summits than our previous socks. You push yourself to new limits, so we thought we’d push our Smartwool® PhD® socks to new ones too.
4 Degree™ Elite Fit
X marks the spot
The iconic x-patterned 4 Degree™ elite fit is one of our key technologies. It unites all activity-specific Smartwool® PhD® socks from cycle to mountaineer and beyond. It’s our locked-in, blister-repellent, ready-to-go platform that enables less slippage and more summits—helping you to not only go far, but to go fast, go freely, and go ferociously.
Shred Shield™ Technology
We worked with our elite athletes to improve the durability in the toe box area of our ultra-light socks. With a new knitting technique, we were able to reinforce the front of our performance wool socks, meaning these new PhD® socks will be with you from first step to mile 100 and beyond.
We’ve broken the restraints of our knitting process, giving us the chance to use new designs and colors on our printed wool. Our printing process allows us to fully saturate the super-fine Merino wool fibers, bringing vibrant, colorful designs to life on our printed socks.