Naturally evolved over thousands of years, we choose Merino Wool for our socks because it’s wildly resilient and incredibly versatile. More often than not, it’s not wool you're allergic to, it’s the kind of wool you’re wearing. Merino Wool is soft and comfortable.
Merino Wool is the world’s most versatile performance fabric. It comes from high-elevation areas in New Zealand and Australia where Merino sheep run wild. The Merino breed’s wool is revered for its durability and moisture-wicking capabilities. Under a microscope, its fibers measure half as thick as human hairs but are twice as resilient, capable of being twisted up to 20,000 times without breaking.
The inherent power of wool is its ability to stretch, thanks to natural crimps in its fibers. These creases, or folds, coil together to create an elastic-like core, giving it a reflexive memory that snaps back into place during and after rigorous activity. Compared to other sock materials, we choose Merino because it's wildly durable, temperature regulating, and silky smooth on your skin.
Small, breathable scales facilitate air flow, assist in moisture wicking, and make Merino Wool soft and silky.
Water repellent and durable, this strong exterior layer keeps your skin from feeling any moisture.
A crease or fold in the fiber, creating air pockets that hold warmth and give Merino Wool its elasticity.
Thermoregulating layer absorbs moisture and releases vapor as you move, reducing sweat and limiting odors.
Merino Wool is a natural fiber that we use to knit hiking socks and other activity-specific socks. The benefits of Merino Wool are that it's naturally odor resistant, moisture wicking, and thermoregulating. Unlike cotton socks, wearing wool socks is better for foot health because the material combats odors and insulates even after it gets wet. And because life just wouldn’t be the same without it.
As your body heats, Merino Wool naturally absorbs moisture before it turns into sweat. Its permeable fibers effectively wick moisture off your skin, helping your feet stay dry. In reverse, outside moisture (think rain or the occasional puddle) also gets captured before it touches your skin, keeping your feet warm and dry when you’re moving. Meanwhile, cotton is like a sponge. Need we say more?
There is a natural crimp in Merino Wool fiber that provides deep pockets of insulation — aka, holding or releasing heat depending on what your body is doing. Think of it as an insulated mug for your feet that naturally keeps your piggies cool in hot weather and warm in cold weather. Synthetics can mimic this behavior but can’t replicate Merino’s innate ability to regulate your body’s core temperature year-round.
Odor resistance is unique to wool. The chemical structure stops sweat and bacteria build-up. So, go ahead and take a whiff. It's not impossible to stink up, but it naturally repels odor to the point that you can wear them for multiple days without a wash (or before you offend anybody). Whether you’re travel-prepping or gearing up for a backpacking trip, our socks ensure your feet stay funk-free for every darn mile.
Sheep have been running around in Merino Wool for thousands of years – and they’ll likely never stop. Not only is it nature’s most versatile fabric, but Merino Wool is also a highly coveted renewable resource. Comprised of tiny, natural proteins called keratin (the same found in your hair), Merino is inherently nutrient-dense with trace amounts of calcium, sodium, and fat found naturally in its fibers.
Unlike the coarse, bristly wool found in your grandma’s closet, Merino Wool is super fine and naturally soft. Its bendable fibers help soothe your skin and keep your feet comfy for days (if not for life). Compared to a human hair, Merino Wool is one-third the diameter and three times as fine, thus creating an ultra-soft, irritation-free fit that feels comfier the longer you wear them.
Your shoes are only as good as the socks you pair them with. And if Merino Wool has taught us anything, it’s that it truly is the world’s best layering material.Unlike cotton layers, Merino layers – including the socks tucked away under your shoes – actively transfer sweat away from your skin and allow trapped moisture to escape without hindrance. And what we knit is softer and more durable, don’t forget.
We Only Use Three Ingredients in Our Socks
Merino Wool, Nylon, and Lycra® Spandex are the only yarns we knit into our socks. A pure Merino sock would not have the elasticity to hold its fit, and Nylon strengthens wear zones. The list is simple, but it’s how we do it that helps us knit a longer lasting sock.
There are more than a few misconceptions about wool, or at least Merino Wool.
Correct, some wool is rough to the touch, but Merino is silky smooth. Under a microscope, the fiber has a longer, scale-like appearance for a fine, smooth feel.
Our running and casual socks, for example, are incredibly thin. Merino Wool yarn is no thick strand you'd find in the crochet basket. You'd likely call it a thread.
The thermoregulating properties of Merino Wool will surprise you. Our heavyweight socks contain the most wool content and can be quite pleasant on a hot day.
Responsible Wool Standard
We prioritize using wool exclusively from sheep that haven't been exposed to mulesing. In 2019, we made a committment to support the Responsible Wool Standard (RWS) and shift 100% of our wool supply to RWS-certified Merino Wool.
Merino Wool fibers come from the fleece of Merino sheep, a breed of sheep known for their very fine, soft wool. It’s the world’s finest wool and revered for its inherent qualities, including durability. After being sheared and cleaned, the fibers are then spun into yarn and prepared for knitting.
Merino Wool is perfect for summer, helping keep your feet dry and sweat-free on even the hottest days. It’s one of the most comfortable materials to wear in the summer because it’s breathable and moisture wicking. Plus, it’s also thermoregulating so your body doesn’t overheat.
Merino Wool is great for winter because it helps keep your feet dry and regulates body temperature. Its fibers are made up of little crimps and bends that trap air and provide insulation for your feet, making it ideal for cold days and even colder nights.
It’s worth investing in a pair of high quality Merino Wool socks if you value fresh feet. Darn Tough socks hold their value and are Guaranteed for Life. So, if you buy one pair and they rip, tear, or puncture, we’ll replace them with a brand-new pair at no additional cost.
Merino Wool’s natural qualities – moisture-wicking, thermoregulating, and odor-resistant – make it the best fabric for hiking. It helps prevent blisters in hiking boots and dries quickly after getting wet. It’s also exceptionally breathable and durable for hiking through rugged terrain.
We combine Merino Wool with Nylon and Lycra Spandex to create a resilient performance fabric that lasts forever. Backed by our Unconditional Lifetime Guarantee, Darn Tough Merino Wool socks offer long-lasting durability that you can trust for prolonged hours on your feet.
Merino Wool is moisture wicking and naturally pulls perspiration away from your skin when your feet start sweating. It maintains its ability to insulate and keep your feet warm even after it gets wet, making it ideal for managing sweat and regulating body temperature.
The benefit of wearing Merino Wool is that it helps keep your feet dry and warm even after it gets wet. The fibers can absorb up to 30% of their weight in moisture without losing their ability to insulate. And after absorbing that much of its weight in water, it still doesn’t even feel like it’s wet.
No, there are different types of Merino. Depending on the diameter of its fibers, some Merino is softer than others. At Darn Tough, we utilize the finest, highest-quality Merino fibers with varying weights and diameters for a next-to-skin feel that’s exceptionally comfortable.
