The North Face jacket

Rating: 9/10.
The price is only around 110 zł, and the quality is top-notch. The jacket is insanely warm. Sizes range from M to XL. You can also buy a thermal liner from this link—it’s warm too. Highly recommended overall.
https://www.kakobuy.com/item/details?url=https%3A%2F%2Fweidian.com%2Fitem.html%3FitemID%3D7283378034
The jacket weighs about 1 kg.
I recommend getting a vacuum-seal bag.