L is for layers.Wearing loose, lightweight clothes, one layer on top of another, is better than wearing a single heavy layer of clothing.

VOA: special.2009.12.23

the clothes feels better and you look better on camera

衣服穿在身上更好了，在镜头里也更好看，

保持身材的理由 - SpeakingMax英语口语达人

My clothes fit better too.

我的衣服也合身多了。

That's what 实战 - SpeakingMax英语口语达人