It is a bit tight (and I have an average-small head size), but I like how well the cotton breathes. I wish it didn't have the seam down the middle, but what can you do? The seam leaves a red mark on my head when I take it off. It does make all my wigs much more comfortable and secure, though! The upside of cotton is that, in addition to breathing well, it's not too slick and the friction helps keep the wig in place. I don't have to adjust the hairline all day, which makes me happy! :) Just get it set right once and forget it...