BLUEBUCK 
British brand Bluebuck creates top of the line organic cotton underwear for men, free from the synthetic fertilizers and insecticides, from crops watered with drip-fed irrigation. Their cotton is hand-picked further reducing the pollution-producing machinery and protecting soil health. The entire production line including all components is produced in Europe. Once assembled, all products are moved by road, rather than by plan, producing 75% less CO2. To add to their green goodness, all of their factories and offices are run using clean energy. 
WHERE TO BUY? bluebuck.net

WAMA
Made from 53% hemp / 44% organic cotton / 3% spandex, Wama offers what my husband says is the "most comfortable underwear on the planet"(he also says he can wear them for multiple days without them "smelling like ball sweat"). They're breathable, anti-microbial, durable and comfortable. Hemp is a super-regenerative plant, helping draw C02 down into the soil. As a crop, it needs neither pesticides nor fertilizer and requires very little irrigation. Patagonia recently put out a great mini-doc about all hemp's benefits, which I wholeheartedly suggest you put on your watch list!
WHERE TO BUY? AzuraBay.com
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SLOGGI
Sloggi has been creating briefs since 1979., each made with high-performance premium fabrics. What really sets them apart is their EverNew collection, promising an unconditional, unlimited lifetime guarantee, for shape, colour, finish, and everything, even with a lifetime of weekly washing.
WHERE TO BUY? Buymeonce.com 

RAWGANIQUE
Producing underwear for men that is completely elastic-free, Rawganics produces 100% organic linen undies which are chemical-free, hypoallergenic, regenerative and ethically made in Europe. They also make 100% Hemp Knit Boxers from organically grown European hemp!
WHERE TO BUY? USA Amazon.com EU Rawganique.com
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ICEBREAKER
Icebreaker​ makes (musling-free) merino undies which are breathable and wick off sweat. A great choice for anyone into sports of any kind.
WHERE TO BUY? Amazon.com
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