I hate to sound like a complete snob, but while it isn't a particular "brand" so to speak, I have come to form a very strong affinity for military surplus clothing.
Yes, it sounds very odd, but there's certainly reason to give it credence.
Many of these garments, mainly outerwear and shirts, were designed with maximum comfort and functionality in mind, and come in a wide range of sizes to suit the needs of potential wearers. Some countries (like the US) have more "standard" sizes, I'll admit, but other European countries (like France and Germany) have sizes based on your overall height, and chest size - making for a nearly tailored fit.
The best part is, surplus by nature is sold at hilariously low prices, and oftentimes for new or like-new condition items. Barring the occasional weird odor from decades of storage, most of these pieces are ready to go, and need little care as they were designed to last for many years. Another plus is the fact that a great deal of modern fashion is based around "military" styled clothing, so there's the added joy of knowing you own the real thing, while others are paying nearly tenfold for a trendy imitation.
Still skeptical? Take a look for yourself! The Finns are my go-to place for all my winter / cold weather needs, and they just introduced $8 shipping to the US. Of course, this is just one of several great online stores - many brick-and-mortar surplus stores still exist.
https://www.varusteleka.com/en
This Czech M85 parka was one of my first purchases, and is still the first thing I reach for when the temperature drops far below zero - it doesn't look too bad either!
https://www.varusteleka.com/en/product/czech-parka-with-liner-olive-green-surplus/5757?qref=czech-parka
