Not many companies make pants with merino wool. However, merino wool is a great material for a summer pants — it’s lightweight, breathable and doesn’t trap odors.

Yak down is a very warm fiber that’s ideal for sock-making. It doesn’t hold odor and it wicks moisture efficiently.

Natural indigo is the blue dye extracted from the leaves of the Indigofera plant.

Here are more men’s sweaters that I’ve found that feature 50% or more yak wool:

Here is a list of companies that make wool knitwear for men:

Camel wool is a very soft, insulating fiber. It ranges in size from 15 to 22 microns — putting it in the ultrafine or superfine categories.

Yak down is a very warm fiber that’s also lightweight and soft. It’s a more affordable alternative to the rare qiviut (musk ox down).

This is a list of clothing brands that make use of organic fibers and non-toxic dyes:

Any wool fiber that has a diameter of 20µ (microns) or less will feel very soft to the touch.

This is a list of knitware manufacturers and stores:

Here is a list of Canadian Clothing companies.

These are the warmest hoodies I could find in 2019:

Hemp is an ideal material for shoe making. It is one the most durable plant fibers. Hemp is also anti-microbial, temperature regulating and breathable.

At Reactual I like to feature independent clothing companies in the US.

For maximum warmth without bulk I recommend yak wool sweaters