Northwave sonic socks 12cmthe sonic socks are excellent performers thanks to their cut that provides support and breathability in the right places they have a medium profile cuff and are constructed from a fast drying polypropylene yarn to keep your feet dry and comfortable features material 45 polypropylene 35 polyamide 20 elastane fast drying polypropylene yarn single elastic hem height 12cm weight 13g buynorthwave clothingfrom chain reaction cycles the worlds largest online bik