The Zwartbles fleece is medium to fine with excellent crimp along the length of fibre. It ranges from dense black to chocolate brown with sunbleached tips. Many fleeces have fine silver hairs dispersed throughout the wool which gives a lustre appearance.

It is a natural brown shade. The fleece is bulky with excellent crimp which makes it superb for felting. The fibre is 100-120mm long and a fineness of around 30-32 Microns.