Smartwool · Merino light-cushion ankle sock · Mid-range
Smartwool Run Ankle Socks (Targeted Cushion)
A light, targeted-cushion merino ankle sock that topped 220 Triathlon's 2026 test and was iRunFar's best ankle sock. Testers found it soft, secure and odor-resistant, though some wore holes in it sooner than in rivals.
- List price
- $21List price on smartwool.com; the page also showed sale prices from $14.70 by color/size. iRunFar and NBC Select also list $21.
- Fits
- Unisex
- Warmth
- Light
- Wind
- None
- Water
- None
- Visibility
- None
- Best for
- Year-round road running, including crisp fall days, for runners who like a thin merino sock with a little padding.
- Not for
- Slushy or deep-cold runs, where an ankle sock leaves skin exposed below the tights.
Downsides
- Some testers saw holes sooner than with other picks (iRunFar)
- Can feel warm in midsummer
- Ankle height leaves a gap in winter
Specs
| Materials | 55% merino wool, 43% nylon, 2% elastane |
|---|---|
| Height | Ankle (iRunFar: 3.25 in cuff) |
| Cushion | Targeted (light) |
| Merino content | 55% |
| Toe style | Virtually Seamless flat-knit toe |
| Warranty | 2-year 'go far. feel good.' guarantee |
| Style number | SW001661 |
Features
- Targeted cushioning at high-impact zones
- Virtually Seamless flat-knit toe
- Indestructawool reinforcement in high-wear areas
- 4 Degree Elite Fit System with stretch and mesh zones
- Made in the USA
- 2-year satisfaction guarantee
What reviewers say
Top sock in the test at 92% (best overall), reviewed as 'Run Targeted Cushion Ankle'. Testers praised its soft feel, padding under the ball and heel, and lack of bunching; it runs warm in summer heat.
220 Triathlon: What are the best running socks for comfort and performance in 2026? These are nine of our favourites · Sep 15, 2026
Best ankle-height pick: it stayed in place, breathed well and resisted odor. Some testers wore holes in it sooner than in other top picks.
iRunFar: Best Running Socks of 2026 · Jun 9, 2026
Included in its expert-backed list. A podiatrist noted the thin merino blend with toe and heel padding and suggested it for cold-weather runs; some users find the padding bulky.
NBC Select: The best running socks for 2026, according to experts · Jan 7, 2026
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