Size guide
Size Guide
Our merino has a close, next-to-skin fit by design. If you are between sizes, stay true to size for base-layer use or size up for a more relaxed everyday fit. Free returns within 30 days, so ordering two sizes and sending one back is completely fine.
How to measure
Chest — around the fullest part of your chest, with the tape level under the arms.
Waist — around your natural waistline, with the tape comfortably loose.
Hips — around the fullest part of your hips and seat.
Inside leg — from the top of your inner thigh to your ankle bone.
Measure over light clothing, keeping the tape snug but not tight. Tap any chart below to open it full size.
Men's Base Layer Set
Need different sizes for the top and the bottoms? Build your own set →
Women's Base Layer Set
Need different sizes for the top and the bottoms? Build your own set →
Kids' Base Layer Set
Men's T-Shirt
Women's T-Shirt
Men's Long Sleeve
Same body measurements across 165, 190, 250 and 320gsm.
Women's Long Sleeve
Kids' Long Sleeve
Men's Long Johns
Women's Thermal Leggings
Kids' Thermal Leggings
Men's Half Zip
Women's Half Zip
Merino Wool Socks
Beanies, snoods and balaclavas
Still unsure which size to pick? Email info@merinotech.co.uk with your height, chest and waist and we will recommend a size. Free UK delivery over £49 and free returns within 30 days.
- Free shipping over $49.99
- 30-day easy returns
- Ships in 1–2 business days
Description
Men's Merino Boxers
Experience the next level of comfort with our Men’s Merino Boxers — made from 100% premium Merino wool. These boxers naturally regulate body temperature, keeping you cool in the heat and warm in the cold. Merino fibres wick away moisture quickly, preventing discomfort and chafing, while their odor-resistant properties ensure lasting freshness.
Soft, breathable, and lightweight, they feel incredible against your skin. Naturally elastic, UV-protective, and anti-static, they move with your body and protect it from external elements. Eco-friendly and durable — perfect for men who value comfort, quality, and sustainability.
Care
Turn inside out. Machine wash cold on a gentle cycle with a wool-safe detergent. Do not bleach. Lay flat or hang to dry.
Shipping & returns
Free UK delivery on orders over £49. Ships in 1–2 business days. 30-day free returns on unworn items with tags.
Merino accessories
Warm, dry and stink-free
Merino where it matters most — socks, beanies, gaiters and underwear in a soft, durable blend. Breathable, naturally odour-resistant and comfortable for days on the trail.
Size guide
Men's Boxers
Fit
A close, supportive fit that is true to size. Between sizes? Size up for extra room.
How to measure
- Chest – around the fullest part of your chest, tape level under the arms.
- Waist – around your natural waistline, tape comfortably loose.
- Hips – around the fullest part of your hips and seat.
- Inside leg – from the top of your inner thigh to your ankle bone.
Measure over light clothing and keep the tape snug but not tight. Still unsure? Email info@merinotech.co.uk with your height, chest and waist and we will recommend a size. Unworn items can be returned free within 30 days.
THE FABRIC
Why merino wool
Merino wool moves sweat away from your skin as vapour and lets it evaporate from the fabric, so you stay dry and comfortable whether you are hiking, commuting or skiing.
Merino fibres naturally resist the bacteria that cause odour, so you can wear a base layer for several days, on the trail or while travelling, and it still smells fresh.
Wool can absorb up to 30% of its weight in moisture without feeling wet. In damp British weather it keeps insulating where cotton and polyester leave you cold.
Merino absorbs UV radiation: our lightweight layers offer UPF 25 and the midweight and heavyweight options UPF 50+, handy on long days in the hills.
Merino wool is naturally hard to ignite and self-extinguishes without melting onto the skin, unlike synthetic base layers.
Merino is a natural, renewable and biodegradable fibre. Sheep grow a new fleece every year, and a worn-out merino garment breaks down instead of shedding plastic microfibres.
FAQ
Merino socks, beanies & accessories: FAQ
What is this 190gsm boxers best for?
It is a light-midweight 190gsm merino layer, best for all-day comfort, travel and sport. Compare every weight in our merino weight guide.
Which sizes are in stock?
Available to order now: , M, L, XL. Our merino is true to size and designed to sit close to the skin; see the size guide for measurements.
Are merino wool socks good for walking boots?
Yes. Merino hiking socks cushion your feet, wick sweat and keep insulating when damp, which helps reduce the moisture that leads to blisters on long days in boots.
Do merino socks keep feet warm in winter?
Yes. Merino traps warm air even when your feet sweat, so it keeps toes warmer than cotton socks in cold, wet conditions.
What size merino socks should I buy?
Choose your size from the size guide. If you are between two sizes, pick the larger size for boots and the smaller one for trainers.
What is a merino neck gaiter used for?
A neck gaiter (snood) can be worn as a neck warmer, face cover, headband or beanie, so it replaces several accessories for cycling, skiing, running and walking the dog on cold mornings.
How do I wash merino socks, beanies and boxers?
Turn them inside out and machine wash at 30°C on a wool or delicate cycle, then air-dry. Avoid tumble drying and fabric softener to keep them soft and in shape.
🔵 Material:The wool fabric is on the thinner side, but that's actually a plus when it comes to base-layer underwear. Surprisingly, it's softer than I anticipated, especially compared to my other Merino wool shirts. This marks my inaugural journey into the world of Merino wool drawers, but here's the two-fold concept. You want warmth even when wet, and you want that wicking and quick evaporation action that wool is known for. If these were thicker, they might get too hot and scratchy.🔵 The Seams:Look plenty good to me and they are in all the right places. I would even say better than most providing support in areas where others have failed me before.🔵 Overall:For just $7.99 (as of 10/2023), you can't go wrong. I highly recommend.
🔵 Material:The wool fabric is on the thinner side, but that's actually a plus when it comes to base-layer underwear. Surprisingly, it's softer than I anticipated, especially compared to my other Merino wool shirts. This marks my inaugural journey into the world of Merino wool drawers, but here's the two-fold concept. You want warmth even when wet, and you want that wicking and quick evaporation action that wool is known for. If these were thicker, they might get too hot and scratchy.🔵 The Seams:Look plenty good to me and they are in all the right places. I would even say better than most providing support in areas where others have failed me before.🔵 Overall:For just $7.99 (as of 10/2023), you can't go wrong. I highly recommend.
These merino wool underwear are great activewear, I like to wear them while hiking or working out.
These merino wool underwear are great activewear, I like to wear them while hiking or working out.
The material is great at keeping you warm without getting too hot, but it seems they are not great for sleeping in if you do run hot or live somewhere hot. During the day they seem to be great and very comfortable.The medium seemed to be bigger than I would have expected for a medium, but the waistband didn't seem too big despite this. They're a spectacular base layer which seems to be their purpose. They also look great on.I appreciated the care instructions for them, although initially found it confusing whether you could or couldn't wash them on a gentle cycle (I think you can).
The material is great at keeping you warm without getting too hot, but it seems they are not great for sleeping in if you do run hot or live somewhere hot. During the day they seem to be great and very comfortable.The medium seemed to be bigger than I would have expected for a medium, but the waistband didn't seem too big despite this. They're a spectacular base layer which seems to be their purpose. They also look great on.I appreciated the care instructions for them, although initially found it confusing whether you could or couldn't wash them on a gentle cycle (I think you can).
Well made socks! These have a lot of pros but not real cons to speak of:- Light weight; not too bulky- Warm without getting hot and soggy- Wicks moisture well; I haven't had issues even after long hikes- Great fit. Flexible material- Good fabric quality and detailingOverall these have been some very solid socks and versatile. I'm wearing these now as the weather gets colder, but plan to sport these even as things warm up.
Well made socks! These have a lot of pros but not real cons to speak of:- Light weight; not too bulky- Warm without getting hot and soggy- Wicks moisture well; I haven't had issues even after long hikes- Great fit. Flexible material- Good fabric quality and detailingOverall these have been some very solid socks and versatile. I'm wearing these now as the weather gets colder, but plan to sport these even as things warm up.
I like that these are primarily wool as that works to keep feet warm and dry when hiking in colder temperatures. These fit well and should also wear well. The colour is a charcoal like shade and overall I would recommend them!
I like that these are primarily wool as that works to keep feet warm and dry when hiking in colder temperatures. These fit well and should also wear well. The colour is a charcoal like shade and overall I would recommend them!
I agree that this sock is not priced well at $30. Although the wool content feels great, the weave is thinner. The leg portion isn’t thick. It is slightly thicker in the foot portion. I tried to show the weave difference in my pictures.They don’t seem like they will last that long. Maybe a year or two. Several if you don’t wear them so often. But for $7, I consider that a good deal. The large is definitely around a men’s size 13 shoe. I’m a size 8. They go half way up my calf and don’t stay up all day because they too big for me.If you are upwards of a size 10 in men’s and like wool socks, I’d recommend them at $7.
I agree that this sock is not priced well at $30. Although the wool content feels great, the weave is thinner. The leg portion isn’t thick. It is slightly thicker in the foot portion. I tried to show the weave difference in my pictures.They don’t seem like they will last that long. Maybe a year or two. Several if you don’t wear them so often. But for $7, I consider that a good deal. The large is definitely around a men’s size 13 shoe. I’m a size 8. They go half way up my calf and don’t stay up all day because they too big for me.If you are upwards of a size 10 in men’s and like wool socks, I’d recommend them at $7.
Just as advertised comfy great feeling and wife love it
Just as advertised comfy great feeling and wife love it
No annoying bunching or chafing. These are awesome. Fits exactly as expected despite being more athletic with larger thighs. It just naturally stretches where needed.
No annoying bunching or chafing. These are awesome. Fits exactly as expected despite being more athletic with larger thighs. It just naturally stretches where needed.
No annoying bunching or chafing. These are awesome. Fits exactly as expected despite being more athletic with larger thighs. It just naturally stretches where needed.
