I bought them as slightly cheaper wind protection solution to accompany my Oktava MK12 pair for outdoor recordings. I did put them to the test near London - I have recorded decent soundscape using it despite pretty strong wind on that very day. Bear in mind that Oktava are not really meant for outdoor work being very sensitive - WS8 helped a lot.
I also tested this wind shield with Rode Nt5 on some street performers and the results were great.
WS8 is well done, quality materials were used and it doesn't loose hair.
I do recommend it!