RRP: £170 Weight: 300g (size 10) Rab have updated their synthetic isulated Xenon jacket and I’ve been trying it out for last few months as the weather has turned colder. The insulation is Primaloft Gold Active and I’ve found the warmth for weight ratio to be excellent. Although the jacket feels thin when you first put it on, the combination of wind resistance and insulation has proved an equal to my current lighter down jacket without having to worry about it getting wet in our Scottish climate. The Pertex Quantum outer fabric provides a good wind barrier and feels comfortably…