Q: These look to be sized large. I have a 44" chest and long arms and normally take a large but may fit into a medium. Please could you give the pit to pit and sleeve length of the medium and large.
A: Approx measurements are as follows. For the medium the pit-to-pit is 24" and underarm sleeve length (armpit to cuff) is 21". For the large the pit-to-pit is 26" and the sleeve length is just over 21". I hope that helps.
Q: can the hood be folded into collar ? or is it out permantly?
A: It is out permanently on this jacket.
Q: How waterproof is this jacket? How resistant is it to UK rain? What could be its main uses?
A: It is water-repellent but not fully waterproof, so will withstand light rain but not a downpour. It has a fleece lining and is windproof so can be used wherever a lightweight warm jacket is required.