1. uniqlo Heattech series: the Heattech series of uniqlo is a very popular brand of warm cotton trousers. They are made of high-tech fiber materials, which can provide excellent heat insulation and comfortable wearing.
2. Decathlon Quechua series: Decathlon is a brand specializing in selling outdoor sports equipment, and their Quechua series warm cotton trousers are also highly respected. These trousers are made of waterproof and windproof materials, which are suitable for outdoor activities in cold weather.
3.ColumbiaSportswear series: Columbia Sportswear is a well-known outdoor sports brand, and their Igniter series warm cotton trousers are very suitable for winter sports. These pants are made of breathable, moisture-absorbing and sweat-wicking materials, which can keep your body dry and warm.
4.NikeThermalTechFleece series: Nike's ThermalTechFleece series of warm cotton trousers are loved for their lightness, softness and warmth. These trousers are made of high-quality suede fabric, which can provide extra warmth.
5.SmartwoolPhD series: Smartwool is a brand specializing in the production of wool products. Their PhD series warm cotton trousers are made of high-quality wool blended materials, which have excellent warmth and breathability.
The above are just some common brands and styles, and the specific choice needs to be decided according to personal preferences, budget and needs.