Same OG, just heavier. The Midweight OG is your cold-weather upgrade—built with the same trusted design as our original OG Long Sleeve, but in a warmer, more substantial 230gsm merino. Ideal for chilly morning runs, winter hikes, or throwing on after a cold plunge.
Features
100% New Zealand Merino Wool – 230gsm
Fine micron: 20 micron for softness ideal for over our t-shirt - preferred as a 2nd layer
Midweight warmth with zero bulk
Breathable, moisture-wicking and naturally odour-resistant
Regulates body temperature in cold or fluctuating conditions
Moves with you – stretch and recovery built in
Ideal as a standalone or cold-weather base layer
Designed in New Zealand, made in China or Fiji
Easy care – machine washable on wool cycle
Description
For the colder months—or for those who simply run cold—the Midweight OG is your merino MVP. At 230gsm, it delivers a little more insulation than our standard OG, without compromising on breathability or comfort.
Soft, itch-free and naturally temperature-regulating, this long sleeve adapts to your environment and activity. From winter trail runs and backcountry hikes to layering under a jacket for the daily commute, it’s built to perform and made to last.
If you’re after a one-and-done merino top for cooler conditions, this is it. Same cut, same trusted fit—just a little more muscle.
Fabric & Care
Fabric: 100% Merino Wool, 230gsm
Micron: 20 ( 2nd layer soft)
Care: Machine wash cold on wool/delicate cycle with wool detergent. Lay flat or air dry.
Origin: Made in China or Fiji using NZ merino
Why Merino 365?
Born in New Zealand, tested by nature. We use only the highest quality merino wool—engineered for performance, made for daily wear. No synthetics, no compromises. Just natural comfort, 365 days a year.
