Gone are the days when windproof fabrics could stand up on their own, nowadays windproof fabrics are fabulous, soft ,lightweight and offer better breathability and versatility than waterproof alternatives. The Firewall 220 Zip is well cut and the stretch thermal back makes for a good fit. The colour and stylish reflectivity makes this top a favourite. A medium equates to a size 12, body length measured at the back is 25.5”.