These arrived yesterday morning (very fast postage). They seem pretty great, it wasn't that cold on the ride to work this morning so I can't tell, but my hands were very toasty, surely 5mm neoprene will be enough for most of the year. They're not quite as yellow as I had hoped, and are quite tight (I'd recommend buying the next size up), I'd consider going for the black ones could I redo the order but they should give some visibility for signals. They're nice and long so there's no gap between the glove and sleeve, and the grip surface on the palm is great.
All in all, for just north of £10 I think they're great.
Are these gardening gloves?