thanks everyone! 
is this winter uniform then? 
Great custom yet again cheng!!!
No this is the ''summer white'' uniform!!! This one is wore during the day! The ''summer blue'' uniform, your previous custom, is wore during night! Both are wore on ship or in the base while working. The blue-jeans uniform, the one we so often see on movies, is only used for ship service, or training! There is also the ''service dress white jumper'' worn while outside the ship or base or on various ceremonies!
The winter uniform is the whole blue one and is called ''service dress blue jumper''!!!
Navy uniforms are actually quite complex, and there are various different uniforms for various different occasions!!
