Optically good, but longevity?

Visually, it was my favorite socks, especially for work. The two colors are good effect and can also be combined well with the classic business colors, so it fits in perfectly, but still noticeable.

However, my criticism is the longevity of socks. Almost simultaneously, both got stockings by about 6 months (ie say about 26x each supported) holes on the chopping.

The socks have lost their color with the laundry so far nothing. Nothing is worn. Only the holes on his heels are about 6 months is not acceptable to me.

I wonder if this is due to the special nature of the shadow socks, or the thinness of the substance. Because the low standard black socks from any department store keep me longer until it comes to holes.

Since it occurred in two pairs, I do not go out of a manufacturing defect. I'll have it to me, therefore, to consider whether my 12 short fun are worth. After all, the look (relatively) is unique.