Satin Belts

[Ichi_Geki]

My student who I am about to test for him to being graded to Sandan is looking at new kuro obi. I asked him what kind of belt would he like, and that if he passes to sandan I will buy him that belt, no matter what the cost or style. He points at my belt and says "One like yours". By that he is referring to the one black belts that the black flakes off after a while of wearing and it starts turning grayish-whitish.

Although...I forgot what kind of belt my Sensei bought for me...I want to say it is a sating belt...but I am unsure now.

Could someone please help me out here?...haha.