Lightweight packable performancefirst thing to say is its light really light it weighs just 50g and packs down into its own back pocket so youll hardly notice youre carrying it and when you feel the need for an extra layer the new wind sl embossed fabric across the front will keep you warm in the wind and dry in the rain the vest has a flattering fit with stretch panels down the sides to allow for plenty of movement on the bike and an ergo zip to help you open and close it one handed t