Windstopper literally translates as "wind shield" in Chinese, which is mainly used as wind-proof lining of sweaters, trousers and casual clothes; Windproof wool for coats, gloves, headdresses and other decorations; A windproof coat for aerobic exercise and casual wear. Make windproof knitwear for mountain bikes and other fast-moving clothes.

Windstopper's technology is to make a layer of windproof and breathable film in the middle of fleece, so that the clothes made have windproof and breathable functions, but the waterproof effect is not good.

Polartec is a kind of wool that can make clothes light, soft and warm. Mainly used in underwear, gloves, hats, the thickness is roughly equivalent to sweaters.

Polartec is divided into lightweight, middleweight and heavyweight. 100 series is light and suitable for making fleece pants. 200 series is the most common, and its warmth retention is better than 100 series. Series 300 has the best warmth retention, is suitable for extreme environment and is heavier.

At present, Polartec has developed many series, among which Polartec Wind Pro has a good windproof effect.

Generally speaking, these two materials have different uses and advantages.