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Your cart is empty.One of Darn Tough's most tech-savy snow socks, the new Function X was re-engineered to provide max comfort and warmth for resort skiers and riders. Made from midweight merino wool, these ultra-smooth socks make all the difference if you decide to head back out after lunch. Terry cushioning in the shin and the 'X' on top of the foot provides warmth while added heel durability protects you run after run.
Austin K
2025-09-03 12:24:04
The length goes nearly down to my knees, which I love for extra coverage. It’s extremely comfortable and doesn’t fade, shed, or shrink. Best of all, it keeps me warm while staying breathable. The thickness is just right—definitely worth the cost.
Jason
2025-08-30 16:23:09
My favorite brand for ski socks. Good for the cold days on the ski hill.
R. Martini
2025-07-20 13:32:41
I have been cycling through some snowboarding socks and havent been able to find the right ones until now. I feel like every other pair had a seam inconvienently located, or were not enough padding, were too thight, etc.These Darn Tough Function X socks are it. I'll stock up on them now and know my sock journey is over. Don't be hesitant, these are the ones you are looking for.
Rich P
2025-07-10 14:42:30
Sizing on foot was good but the sock is too long. Rides up too far into the crease of the knee
Customer
2025-06-24 18:01:06
Lifetime guarantee is a nice bonus. Sizing is a little on the big side, but not the end of the world.
Customer
2025-01-24 15:02:53
Warm, comfortable and definitely reduce the irritation from my downhill ski boots!
Arden
2025-01-15 15:18:29
Long enough for my motorcycle boots and wicks sweat extremely well. Hard to find in Australia and it imported well!
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