3 "Could be much better designed-don't fit the face well" Miss Stobart 23 January 2021 I really like the material designs and they are very well made. Having toggles on the ear straps is good though they are fiddly and could easily come off the ends and would not be easy to reattach. However as the ear loops are fixed in place & don't run through the mask sides it doesn't fit your face at the sides or under the chin. The material is very stiff too. I have modified mine by unpicking the mask sides, removing the loop elastic, joining the ends together and sewing the sides down with the loops running through the 'tunnel'; now they are actually adjustable to fit your face.