冬天穿夏装要多有范
[dōng tiān chuān xià zhuāng yào duō yŏu fàn]
The literal meaning of the username is 'how cool it can be to wear summer clothes in winter', where '范' stands for 'cool', referring to a style of appearance or dressing manner. The user might be trying to show off his/her individuality or confidence with unconventional behavior such as dressing light during winter.