Unisex Ski Full Cushion Over-the-Calf Socks-Socks & Underwear-Smartwool-Black-Mountain Sports
Smartwool

Unisex Ski Full Cushion Over-the-Calf Socks

Smartwool's most cushioned ski sock, named Best Full Cushion Ski Socks by GearJunkie for 2025–2026.

$34
Color: Black
Size:
Size guide
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Top features
Merino wool blend
Full cushion
Indestructawool™ durability
Description

If you're searching for maximum cushioning in your go-to ski socks, look no further than our Ski Full Cushion Over-The-Calf Socks. This pair of Merino wool socks helps keep things warm, but breathable. And comfortable, but always performance-ready. Elevate every ski day with your soon-to-be favorite socks.

Perfect for
Ski and ride
Over-the-calf.
Cold days out
Full cushion.
Indestructawool™
Reinforced wear zones.
Features
  • Merino wool blend. 60% Merino carries the warmth, the moisture management and the odor resistance; the nylon and elastane carry the durability and the shape. Full blend: 60% Merino wool, 38% recycled nylon, 2% elastane.
  • Full cushion. Full cushioning across the entire sock — Smartwool's warmest and most protective ski sock construction.
  • Indestructawool™ durability. Extra yarn is knit into the high-impact wear zones — heel, toe and the shin where a boot buckle sits — so the sock wears out where it is thickest rather than where it is thinnest.
  • 4 Degree™ Elite Fit System. Two elastics pull the sock in at the arch and the ankle, and mesh zones sit where the foot vents. It is what stops a sock creeping down inside a boot and blistering you.
  • Shred Shield™ toe protection. Additional reinforcement at the toe box, where a stiff ski boot shell does the most damage to a sock.
Size & Fit

Smartwool sock sizes run off shoe size — check the Smartwool sock chart on this page. Offered in S, M, L, XL, XXL. Over-the-calf height finishes above a ski or snowboard boot cuff rather than under it.

Open size guide
Materials
  • 60% Merino wool.
  • 38% recycled nylon.
  • 2% elastane.
  • Care: Machine wash cold on gentle cycle with like colors; do not bleach; tumble dry low or lay flat to dry; do not iron; do not dry clean.
About the brand

Smartwool brings the magic of merino wool to life — keeping you warm, dry, and comfortable no matter the season. From performance socks to base layers, every piece is designed for adventure. At Mountain Sports, we love Smartwool because it proves comfort and sustainability can go hand in hand, from trail to town.

Shop all Smartwool

SKU SW001908-001 · Style SW001908
Size guide

Smartwool Size Chart - Socks

Smartwool Sizing Chart

Sock sizes are based on your everyday U.S. shoe size.

Socks (Men's & Women's):

Size U.S. Men's Shoe Size U.S. Women's Shoe Size Euro Shoe Size UK Shoe Size
S 3 - 5.5 4 - 6.5 34 - 37 2 - 4.5
M 6 - 8.5 7 - 9.5 38 - 41 5 - 7.5
L 9 - 11.5 10 - 12.5 42 - 45 8 - 10.5
XL 12 - 14.5 N/A 46 - 49 11 - 13.5
XXL 15 - 17.5 N/A 50 - 53 14 - 16.5

Kids' Socks:

Size U.S. Shoe Size Euro Shoe Size UK Shoe Size
XS 6 - 8.5 22 - 25 5 - 7.5
S 9 - 11.5 26 - 28 8 - 10.5
M 12 - 2.5 29 - 32 11 - 13.5
L 3 - 6 33 - 36 1 - 4.5

Kids' sock sizes follow kids' shoe sizing, which starts over after size 13.5 - so size M covers 12 through 2.5, and size L covers 3 through 6.

Smartwool socks run true to size, based on your total foot length - and calf circumference for compression socks. Smartwool socks are designed to retain their fit and shape; following the care instructions on the label will help avoid shrinking or stretching.
Performance

How it ranks across conditions.

Calibrated against comparable products we stock, so you can compare like for like.

Cushion

Zero
Light
Medium
Full

Full cushioning on the entire sock adds the warmth, enhanced impact protection and durability you need and love.

Warmth

Light
Moderate
Warm
Very warm

60% Merino at 105 g (3.69 oz) over the calf. A cushioned sock traps more air, so it is the warmer choice.

Durability

Standard
Reinforced
High
Maximum

Indestructawool™ reinforcement is knit into the heel, toe and shin — the three places a ski boot destroys a sock. Shred Shield™ adds further protection at the toe box.

Bulk in the boot

Minimal
Low
Moderate
High

Full cushioning takes up real room. If your boot is already snug, size the sock down in bulk, not in length.

Best for

Is this right for you?

Resort ski and snowboard days

Over-the-calf height finishes above the boot cuff, so no sock edge is trapped between a hard shell and the shin.

Not for: Full cushioning takes up room. In a boot that is already fitted tight, this is the wrong sock. Try the Ski Zero Cushion socks

Touring and long days out

Merino manages moisture on the way up and keeps insulating on the way down, and the cushioning absorbs the miles.

Not for: A thick sock inside a touring boot on a long skin track is a warm foot and a wet one. Add the Thermal Merino Reversible Neck Gaiter

Winter boots and cold days

Over-the-calf Merino works just as well inside a winter boot as a ski boot, and it goes several days between washes.

Not for: Over-the-calf height is deliberate and tall — it is not a sock for shoes. Add the Unisex Merino Gloves

Full spec sheet

Technical Specs

Material60% Merino wool, 38% recycled nylon, 2% elastane
CushionFull — Full cushioning on the entire sock adds the warmth, enhanced impact protection and durability you need and love.
HeightOver-the-calf
TechnologiesIndestructawool™ durability, 4 Degree™ Elite Fit System, Shred Shield™ toe protection
Garment weight105 g (3.69 oz)
SizesS, M, L, XL, XXL
Country of originMade in the USA of imported yarn
Style numberSW001908
Questions, answered

Before you buy.

Pulled from chats, emails and store visits. The things people actually ask us before they buy. Don't see yours?

Ask a question
How do I pick a sock size?

Smartwool sock sizes run off shoe size, not foot length in inches. The Smartwool sock chart on this page maps each size to US, Euro and UK shoe sizes. This style is offered in S, M, L, XL, XXL.

What does full cushion mean?

Smartwool's own definition for this style: “Full cushioning on the entire sock adds the warmth, enhanced impact protection and durability you need and love.” Full cushioning across the entire sock — Smartwool's warmest and most protective ski sock construction.

Can I wear these more than once between washes?

Yes — that is one of the practical reasons to ski in wool. Merino resists odor build-up, so a pair aired out overnight is fine for a second and often a third day. Wash them when they are actually dirty.

Will they shrink?

Not if you follow the label. Machine wash on a gentle cycle in warm or cool water and tumble dry low. High heat is what shrinks and felts a wool sock — a hot dryer will do more damage than a season of skiing.

What is Indestructawool™?

Extra yarn knit into the heel, toe and shin — the zones a ski boot wears through first. It is construction rather than a coating, so it does not wash out.

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