Invisible is the range for those who want the gentlest touch to accompany their support tights if you want a light to medium compression but prefer a sheer pair of tights over the 30 or 40 deniers that normally feature this level of support then this is the design for you this 15 denier item is very sheer and perfect for summer days or for evening wear but it doesnt sacrifice the robust support or the instantaneous sculpting effect that makes all of the item m6 range so famously wonderful for