We've added a 30% wool blend to our felt selection
30% wool 70% viscose
300g/m
approx 1mm thick
We cut the felt by hand, here in our workshop. 
Available in four sizes:
12"x12" square (30cm x 30cm)
mini roll - 12" x 72" (30cm x 180cm)
18" x18" square (45cm x 45cm)