Just tried a few of the jackets recommended in this post and thought I’d share my findings, in case anyone was interested.
I tried:
Hagloffs Endo
Rab Stretch NeoShell
Montane Mohawk
Arc’teryx Beta FL
The Montane was really well put together, was pretty lightweight and had some great features, but the arms were just too short for me. A shame, because otherwise it was pretty much perfect.
The Hagloffs was the only one specifically designed for riding, which was evident in a fantastic fit. It was really trim in the body and more than adequately long in the arms, but felt far too flimsy. The sales guy said he wouldn’t expect it to last long, particularly with regular wear under a backpack. That said, it was the cheapest of the four. I spoke to Hagloffs and they said the Electron would be a better bet as it’s a bit sturdier, but I can’t find anywhere in London that stocks it.
The Rab was the most comfortable (possibly due to the slight stretch in the fabric) and like the Hagloffs had really long sleeves – even fully stretched out they didn’t ride up at all. It was also felt the most sturdy, and apparently the NeoShell fabric is considerably more breathable than eVent or any of the GoreTex fabrics. The only problem, apparently, is that its waterproofing is nowhere near as extensive as eVent or GoreTex. The sales guy also said that it would get worse with use, and that there was no way to re-treat it to fully restore its waterproofing. (He did say it would remain fine for all but prolonged use in a serious downpour, however.) I actually spoke to Rab’s sales team, who are all keen cyclists, to see if they’d recommend it for MTB use. They actually suggested I look elsewhere, as the NeoShell wasn’t specifically designed for riding so I’d probably be able to do better for my money – how about that for customer service!
Somewhat predictably, given its ludicrous price tag, the Arc’teryx was probably the best overall. The fit was pretty much perfect – it felt really comfortable and light – and apparently uses a new version of Gore’s Active Shell that is a good mix of waterproofing and breathability. It wasn’t quite as comfortable as the Rab, and definitely didn’t feel as sturdy, but other than that it was spot on. A bit too spendy for me, but might be worth keeping an eye out in the sales.
Hope that helps!