Cycling Sock Merino

Cycling Sock Merino is FUSION's all-round cycling sock for the cooler parts of the year.

It combines 25% merino wool with polyamide and elastane, giving you more warmth around the foot without ending up in a thick winter sock.

That makes it especially strong in spring and autumn, when the temperature changes a lot over the course of the day. In winter, it works really well with a pair of winter overshoes.

It is a sock you can use on the road, on gravel and on the MTB when you want more warmth than a classic summer sock but still want a close, precise fit in your cycling shoe.

Because spring and autumn rarely mean one steady temperature.

You might start your ride in cool weather and finish several hours later in milder temperatures. This is where the merino wool strikes a good balance between warmth and comfort without making the sock unnecessarily thick.

At the same time, the sock has ventilated zones around the foot, so it can still handle the heat when the intensity or temperature rises.

That makes it very versatile on days when the weather changes along the way.

Yes.

The sock is warm enough for long, cold winter rides, yet still relatively thin, so it fits well in a standard cycling shoe.

On really cold days it works best as part of a system: Cycling Sock Merino on your foot and a winter overshoe over your shoe.

The sock helps keep the warmth close to your skin, while the overshoe protects against the cold air and the weather outside.

It is a very strong combination for winter training.

No.

In fact, that is one of the strengths of the Cycling Sock Merino.

It is thin enough to wear on milder riding days too, but the merino wool gives more warmth than a classic thin cycling sock.
This means you get more insulation without filling your cycling shoe with extra bulk.

That matters, because a very thick sock can make the shoe too tight and affect comfort on longer rides.

Merino wool is particularly interesting in cool weather, because the fibre helps regulate temperature and adds warmth around the foot.
In the Cycling Sock Merino, the merino wool is combined with polyamide and elastane rather than used on its own.

This gives a more technical construction, where the merino wool contributes warmth and comfort, while the synthetic fibres help with fit, stability and durability.

The sock is made of:

65% polyamide
25% merino wool
10% elastane.

This means the merino wool is a key part of the sock's warmth and comfort, while polyamide and elastane help create the close, stable cycling fit.

Because a cycling sock has to stay in place.

The 10% elastane helps the sock follow the foot and lower leg closely and hold its position through many hours of movement.
This is especially important around the leg of the sock, where it needs to sit securely without constantly slipping down.

Yes.
The sock has ventilated zones around the foot.

This means the construction is more open in selected areas, so heat can escape more easily.
That is an important detail in a merino sock, because the aim is warmth without making the foot unnecessarily hot and stuffy.

The result is a better balance between warmth and ventilation.

Because more warmth is not always better.

When you push hard on the pedals, your foot also produces heat. If the sock only insulates without allowing for ventilation, your foot can quickly get too warm.
The ventilated zones therefore help the sock work across a wider temperature range.

That is exactly why the Cycling Sock Merino works so well in the shoulder seasons.

The fit is regular, but the sock should still sit close around the foot.

It should lie smoothly inside your cycling shoe without creases, and the cuff should sit securely around your lower leg.

As a rule, choose the size you normally wear.

The cuff is 6” / approx. 15 cm high.

This gives a classic modern cycling length while keeping the merino fabric up around the lower part of the leg.

The heel is exposed to a lot of repeated friction inside the cycling shoe.

That is why our cycling socks have a reinforced heel zone.
This adds extra material to an exposed area without making the whole sock thicker.

Yes, especially on cooler summer days.

The sock is thin enough for road, MTB and gravel riding in milder weather too.

On really hot summer days, a lighter, more breathable cycling sock will usually be the more obvious choice.
The Cycling Sock Merino really comes into its own when the temperature drops.

No.

The Cycling Sock Merino works for road, gravel and MTB.

The temperature-regulating construction and the close fit make sense across disciplines.

Yes.

The sock is designed for both men and women and is chosen by shoe size.

The biggest difference is the temperature they are designed for.

The Cycling Sock Merino prioritises more warmth and temperature regulation for cooler conditions.

A classic thin cycling sock prioritises more ventilation for warm days.

A simple way to choose:

Hot summer day: a light technical cycling sock.
Spring and autumn: Cycling Sock Merino.
Winter: Cycling Sock Merino + winter overshoes.

For most cold winter rides, the Cycling Sock Merino works best together with winter overshoes.

The sock provides warmth and comfort close around the foot, while the overshoes reduce the impact of cold air and winter weather on the outside of the shoe.
This is often a better solution than simply choosing a very thick sock, because a sock that is too thick can make your cycling shoe unnecessarily tight.

Wash it cold with similar colours.

Use a wool detergent, avoid fabric softener and dry the sock flat.

Washing it correctly helps the merino fibres retain their properties for longer.

The sock is Made in EU and produced in Portugal.

The Cycling Sock Merino is certified to OEKO-TEX® STANDARD 100, certificate 2017OK1267.

This means that every component of the product has been tested for harmful substances.

That matters for a cycling sock, because it sits close to the skin for many hours of heat and sweat.

The Cycling Sock Merino currently has 4.9 out of 5 stars based on 16 reviews.

That is a very high overall rating and fits well with the product's role as a versatile sock for cooler cycling days.

Because it is a technical cycling sock developed for a very wide temperature range.

You get a fabric blend with 25% merino wool, combined with polyamide and elastane, so the sock delivers warmth, a stable fit and durability.

On top of that come ventilated zones around the foot, a reinforced heel, a 15 cm cuff and graduated medical compression in the cuff. The sock is made in Portugal and is OEKO-TEX® STANDARD 100 certified.

Most important, though, is how versatile it is: it is a sock that works really well through spring and autumn and well into winter when paired with winter overshoes.

So you are paying for a cycling sock that hits the tricky middle ground between a thin summer sock and a heavy winter sock – and that you can wear for a large part of the year.

Merino is a material that works for you: it regulates temperature, counteracts odour and feels dry even when you sweat. But it does require that you treat it with care:

Only use wool detergent and a wool programme.

Wash rarely - airing it out is often enough.

Dry it flat, and avoid heat and sunlight.

Store wool products dry and clean, away from moisture - in a closed box, for example.

That way Merino keeps its structure, softness and natural function year after year.