Compress to impress castelli have played around with compression for years but have avoided bringing anything to market because they just hadnrsquot found anything that could back up the claims of enhancing performance in testing one product stood out for excellent on bike comfort so theyve put it in the collection and here it is the compressione sock itrsquos more compressive than castellis other socks but theyre still wary of dubious and unsupported claims that comp