Lithium

Recently picked up the jacket after SBS agreed to refund my RST Raptor which was clearly not waterproof as was advertised.

The Drystar has been a godsend for me! Been out in some serious downpours and its kept me bone dry which is saying something from someone in Manchester.
Not quite as warm as some other jackets of that style but I find its exceptionally lightweight and is warm enough.

Only grip I have found and beware of this one. The chest pocket thats sort of in between the front zip and the storm flaps isn't waterproof. My phone was in it during a rain and came out a little damp. Luckily no damage but in some of the storms I've been in recently it would of been knackered.