For my Knack calves (43 cm) is the recommended size L / XL right; closely they should not be. Cuffs I like that, because I have separately bandages, which need to be frequently washed much as legwarmers. So I can carry on days with heavy traffic with foot wraps, other days I put it simply, the support-knee socks from Aldi over it, because I can feel all day long calf massage. In both cases, I get cold feet, on the contrary.