“These seem worthy of their reputation. During a recent cold snap, they kept me warm before, during and after my runs and, remarkably, didn't sweat my legs up - no cold, clammy synthetic feel that you often get with tights and tops. I'm even considering wearing them in extremis as thermals under my jeans. One thing that worried me initially was the waist and whether it would slip down. It didn't seem super tight. But it didn't and I don't think repeated wearing will loosen them as it's not just the waist that is holden them up. Good piece of kit. (I think I went Large and I'm 83kg and 5'10")”