My Moggans socks performed very well on last week’s ultra in the Balkans. Not a sign of a blister or hot spot. All around comfort. Thanks! A great product.
Ultralight Speed Ankle Socks | Marathon Running
Sock Size Guide | Moggans
Finding your perfect sock fit is simple.
Use the table below to match your UK, EU, or US shoe size to the correct Moggans sock size. Our Merino wool socks are designed with a precise fit to prevent bunching and blisters, whether you're hiking, running, or going about your day. If you're between sizes, we recommend sizing up for maximum comfort.
| Small | Medium | Large | XL | |
| UK | 2 - 4.5 | 5 - 7.5 | 8 - 10.5 | 11 - 13.5 |
| EU | 36 - 38 | 39 - 41 | 42 - 44 | 45 - 47 |
Product Description
At‑a‑glance: Precision‑engineered for fast training and race day with targeted cushioning, arch support and ventilation.
Best for: Marathon racing, road running and faster training
Our Ultralight Speed Ankle Socks are designed for runners who want minimal bulk and a lightweight feel during faster sessions and longer races. The merino-rich construction helps manage temperature and moisture while the ankle height provides comfortable coverage for training, half marathons and marathon race days.
Running off-road? Explore our Trail Running Socks. Looking for a more versatile everyday option? Browse our Running Socks collection.
Specs
- Cushion: Ultralight with targeted zones
- Height: Ankle
- Composition: Merino‑blend with recycled polyamide (see product page)
- Care: Machine wash 30°C delicate; eco wool wash recommended
- Made: Designed in Scotland; made in EU
Ankle or No Show?
Choose our Ultralight Speed Ankle Socks if you prefer a little more coverage above your running shoes during longer road runs and marathons. If you want the lightest possible feel with minimal visible sock, explore our Ultralight Speed No Show Socks. Both styles use our ultralight merino blend to help regulate temperature and manage moisture on faster runs. Browse all Running Socks.
FAQs
- Do they help prevent blisters?
- Moisture management, flat seams and secure fit help reduce friction.
- Hot‑weather running?
- Mesh ventilation and ultralight knit keep feet cooler.
- Road vs trail?
- Built for both; choose crew height for more coverage with debris.
- Sizing?
- Select your usual size; consult the size chart if between ranges.
Built for road runners who want a little more coverage without the weight of a conventional training sock. The ankle cuff sits above the shoe collar, while targeted Merino zones help manage heat and moisture over long sessions. Arch compression and a low-bulk toe finish help the sock stay settled as pace and distance build.
Read our comprehensive guide: The Marathon Sock Dilemma: Merino vs Synthetic to understand why serious marathon runners are making the switch.
Key Features:
- Targeted Cushioning: Reinforced heel and toe with lightweight padding where it's needed most.
- Midfoot Compression: Supports the arch and locks the sock in place to prevent slippage.
- Ventilation Zones: Mesh panels keep air flowing, so your feet stay cool and dry.
- Mulesing-Free Merino Wool: Naturally breathable, thermoregulating, and odour-resistant for all-day wear.
- Invisible Toe Seam: Prevents chafing and irritation.
- Ankle Cuff: Sits above the shoe collar for comfortable coverage on long road miles.
Perfect For
Marathon and half-marathon racing, long road runs, tempo sessions and runners who prefer ankle coverage.
Prefer an invisible cuff? Choose the Ultralight Speed No Show Socks. Need more protection from trail debris? Explore our trail and crew-height running socks.
Designed in Scotland. Made in the EU.
Composition
Why Merino?

Get the Correct Sock Height

Product Care
Machine wash on delicate cycle (max 30˚C), using an eco-friendly delicate washing liquid. Personally, we recommend Nikwax Woolwash and a max spin of 400rpm.
Complete Your Layering System