I bought these as a gift for my husband to stop him pinching mine! He says he was surprised that they kept his feet so warm even when he popped them on without socks to nip down the garden and he also really likes the way they hug his feet so that they feel very secure. He's usually a man of few words so these comments shout how good they are. i was told when I ordered them that the 'chunky' versions come up slightly more snug that the regular and so was advised to order the next size up, which I did, and which fitted perfectly. These people know their stuff. I was very impressed at how quickly they arrived and in good time for Christmas despite the postal strikes. Overall this is a great product with excellent customer service.