Joe Under Black - 2-Pack

16.5 micron
100% ultrafine Merino wool
100% ultrafine Merino wool
€99,-(incl TAX)

Joe doesn't do sale. All our Joes are not only timeless classics but are manufactured and sold at fair prices. Still, we can offer you a sweeter deal if you buy more Joes in one go. We cut down on our costs, and you get a discount. It's a win-win, really.

Note: our socks are excluded from the Buy More Save More deal.

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Only %1 left
  • Inside the EU: Free shipping and returns
  • Return a pullover? No problem! Any time and reason
  • In house service center

Color description

Mountaineers already knew. Wool is ideal to regulate body temperature and absorb transpiration. But you would itch to take it off as soon as possible.

Flash forward to now: the new woollen undershirt has arrived. And not just for mountaineers or other explorers.

Joe has developed the ideal undershirt for everyday wear. Made from ultrathin yarn, to be worn invisibly under your dress shirt. Or your Joe Merino of course.


  • ModelUnder
  • CategoryT-shirts
  • Neckline V-neck
  • Sleeve length Short sleeve
  • Material 100% ultrafine Merino wool?
  • Fineness 16,5 microns ?
  • Gewicht 150 grams ?
  • Dikte
  • Colour nameBlack 2-pack
  • ColourBlack
  • Model & Size John is 1.85 m, weighs 74 kg and wears a medium

Why Merino wool

  • Super soft
  • Temperature regulating
  • Antibacterial
  • Moisture wicking
  • Colour-fast
  • Retains its shape
  • UV protection
  • Easy to refresh

Delivery and returns

Delivery | Order before 3:00 pm and we’ll send out your order that same day
Delivery is free of charge within the EU (view all shipping costs). Once your order leaves our warehouse we will send you a Track & Trace code to track your order and the time of delivery.

Returns | Returns are free of charge within the EU. There are two ways to return your order:
  1. Through the post. For more information check out our returns & exchanges page
  2. Go to one of our brick and mortar stores in Amsterdam, Leidschendam, Antwerp or Düsseldorf.
Size Calculator

Size calculator

Uncertain about your size? Based on the experience of our customers, we can thoroughly estimate your size.

Answer below three simple questions and Joe will give you the right advice right away.

John is 1.85 m, weighs 74 kg and wears Medium.

Your size is:

  • Style
  • Material
  • Maintenance

Joe Under

The perfect woolen undershirt as Merino wool breathes and absorbs transpiration and unpleasant smells.

What to expect

Simply put, Joe Under is the ideal shirt to wear under anything.

Comfy warm but never too warm because Merino wool knows how to regulate moisture and heat, and even absorbs transpiration and unpleasant smells.

Joe Under is extra-long and always a tailored fit because of the fine knit.


The ultrafine Merino wool Joe uses is about 16.5 micron thick. The structure and fineness of our Merino wool are the reasons our Joes feel soft and are not prickly.

Merino wool is praised world wide for its softness, strength, breathability and temperature regulating benefits. In addition, merino wool is 100% natural, renewable and biodegradable. All these beautiful natural properties make merino wool an extremely comfortable fabric to wear. Perfect for all seasons!


Thanks to Merino wool’s antibacterial qualities, you don’t have to wash your Joe very often. Just air your Joe outside for a night, and he will be ready for wear the next day!

Still, we recommend washing your Joe every now and then. Just put him in the washing machine on the wool cycle (30° maximum, spin cycle no more than 600 rpm.) No need for manual labour! Have a look at the symbols below to find out what you have to do to get the best result.

Take care of your Joe

woolwash at 30° maxWoolwash at 30° and 600 rpm max
use wool detergentUse wool detergent, no softeners
no tumbledry (could be deadly)No tumbledry (could be deadly)
dry flatDry flat
ironIron away with a little steam
bleachNo bleach, this will kill the colour

Download our maintenance booklet (pdf)