I have tended to reject these as they are so thin, and also Ive never had any ankle swelling - but recently after spending a long time sitting and enduring the cold feet problem I thought I'd have a go with them and did find them helpful. It is somehow counter-intuitive to put something tight on, but they aren't tight on your toes, just up the calf muscle, and the compression actually feels quite good. I add extra layers with the usual 2-3 pairs of longjohns under the trousers and a doubled up leg warmer around the ankle! Gosh what are we like! Its embarrassing to admit to all these layers!! But I know you will understand and I hope this tip may help someone else out there.