This item has been supplied on a "review-and-keep" basis by Adam Smith, representing Go Outdoors.
The jacket being reviewed is the Montane Lite-Speed H2O, the Go Outdoors link is here and the Montane link is here.
This jacket is billed by Montane as "THE WORLD’S LIGHTEST WATERPROOF JACKET" and who am I to argue with that claim? Go Outdoors are pushing it as a "Running Jacket", I can assure all and sundry that I'll not be running anywhere in it! No, this jacket is competing with the proofed Montane Featherlite Smock for a place on my "must take" fellwalking-kit list. Sadly I didn't get sent the Black version, but I've no doubt that this Fluoro-Yellow jacket will perform just as well.
If you want the proper spec it's best if you follow the links above, I'll add that the actual weights for the one supplied to me are: jacket 174g, stuffsac 14g (5g if you hack off the Velcro strap and plastic loop), those weights are for a size L.
Although it's a minimalist jacket it looks to be well-constructed with excellent stitch-work and taped seams throughout. The zip is a tad awkward to get moving, I reckon that it needs a bit of "running-in". The hood is basic, it has a single-handed draw-corded captive toggle system for closure but no stiffened or wired peak or anything else techie. The hood stowage is neat with three Velcro patches for keeping the collar closed, the only niggle here is that the FreeFlow H2O fabric is so lightweight that I get the feeling that it (or the stitching) will give way before the Velcro opens. It doesn't, of course. The hemline has a drop-tail and another of those excellent draw-corded closures. Cuffs are "self-fabric" which to the terminally-confused means that the ends of the sleeves are simply folded over a bit of elastic and then tube-stitched. TBH I don't like these cuffs, I much prefer the cuffs on the original Featherlite Smock which have a much better fit and feel. Aside from some reflective bits here and there, that's about all there is... no pockets, no vents and, oddly, no hanging-loop.
I had expected this jacket to be quite similar to the Featherlite Smocks that I already have but it is significantly different. Then again, it has a different job to do. I'll report back when it's been baptised, or when I've been released from custody after being arrested by the Style Police for wearing it in public.
According to Go Outdoors the Retail Price is £90.00 but they're currently in the sale at only £36.82 - perhaps it's time to get one for yourself? If that don't float yer boat, they have plenty of other waterproof jackets for your perusal here.
Oh, nearly forgot! Packed size. Many sources claim that the Lite-Speed H2O is about the size of a small grapefruit. Well, we don't do grapefruits here and so I can't confirm those claims, but I can say with no fear of contraception that it's a bit bigger than an orange, a bit bigger than an apple and quite a bit shorter than a banana...
No zip stiffness to report on Mick's (also bright yellow) H2O!
@Gayle - I've just read your report and have commented accordingly 😯