The Standard Long Sleeve - 100% Merino Wool, Black
The Standard Long Sleeve - 100% Merino Wool, Black
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These are the perfect merino base layer pants. I'm 173cm tall (5'8") and got the 2XL-- the pants are not too long, and they'd still work for taller people. The fit is fantastic and they're so breathable. I'm usually on the warm side, and until I got these pants, I wore shorts around the house, but now I wear these all the time! I raved about them so much that my partner ordered one herself (along with a top). I'll continue to tell friends and family about Merino365, and I'll be buying more products from them in the future.
This 1/4 zip top has become my everyday top in cool and cold weather. I'm 173 cm tall (5'8"), so the sleeves fit nice and relaxed. It's so soft and warm, and it doesn't fit skin-tight like many other brands. It's relaxed enough to wear every day, but it's also perfect as a base layer under mid and shell layers. Shipping was smooth to the U.S. I highly recommend Merino365! Fantastic business!
Bought two of the OG long sleeve for our family trip to Europe.
We are currently in Muonio, Lapland, 275km north of the Arctic circle ❄️❄️ and they have kept me toasty and warm!
We are supplied with extreme weather gear for the conditions, but it all starts with the right base layer - these are great.
10/10 recommended.☃️
I've worn this and it's so cozy. Quality is really good and the customer service was top notch. I would highly recommend Lucy and her products at Merino 365
Size correct; perfect fit
Size Chart
Size Chart

- Easy returns
- Timeless Fit
- New Zealand merino
The everyday essential — perfected.
Meet The Standard. Inspired by our best-selling Men’s OG Long Sleeve, this upgraded version keeps everything you loved and adds a few smart refinements. Think a more modern fit, sleek inset thumbholes, and cuffs that actually stay put. Same ultra-soft, 100% New Zealand merino. Same all-season performance. Just sharpened, streamlined, and ready for whatever your day throws at you.
Features
- 100% New Zealand Merino Wool – 200gsm
- Ninja Thumbs – thumbholes when you want them, invisible when you don’t
- Updated, contemporary fit — tailored but never tight
- Inset thumbholes for easy layering and cozy hands
- Cuffed sleeves that stay where they’re meant to
- Superfine and soft – no prickle, itch, or irritation
- Breathable, moisture-wicking, and odour-resistant
- Naturally temperature-regulating — wear it all year
- Moves with you — naturally stretchy and built for action
- Designed in New Zealand, made in China or Fiji
- Machine washable on wool cycle (yes, really)
Description
Welcome to your new daily driver. The Standard Longsleeve is your go-to layer for whatever's on the calendar — from early hikes to late-night flights, layered under a jacket or flying solo. It’s the kind of shirt you’ll forget you're wearing (until someone asks where you got it).
Thoughtful upgrades like inset thumbholes and stay-put cuffs make layering seamless. And of course, it’s made from our signature 100% merino wool — soft on skin, tough on odour, and naturally temperature-regulating so you can wear it in just about any weather.
One top. All seasons. Zero compromises. That’s The Standard.
Fabric & Care
- Fabric: 100% Merino Wool, 200gsm
- Care: Machine wash cold on wool/delicate cycle with wool detergent. Lay flat or air dry.
- Origin: Made in China or Fiji using New Zealand merino
Why Merino 365?
Born in NZ. Worn everywhere.
At Merino 365, we take the world’s finest merino wool and craft gear that works hard and wears easy — seven days a week, 365 days a year. No synthetic blends. No shortcuts. Just naturally high-performing clothing that feels better, lasts longer, and fits right into your lifestyle.
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