Well, they were still wearing them in the field when I was in the army. Only I was in a different army and we didn't have anything like it. I was in the US Army and greatly coveted berets, jerseys, blancoed web belts and all those beautiful cap badges, flashes, hackles, stable belts and all the other dingbats the British had. I don't think even the Canadians had half as much. I tried for years to get my hands on a jersey, finally succeeding around 1975. Only a few years later the US Marines adopted it and they were available everywhere.
I have even owned a KF shirt. I, uh, outgrew it. I have several pairs of puttees that I wear with my Boots, CWW, and Boots, DMS, but I don't generally blouse my trousers anymore.
For some reason, normal civilian wool sweaters (pullovers) are very scarce on the ground around here but the well known Yuppie outfitter, L.L.Bean sells genuine British made heavy wool sweaters in various woodsy shades of brown and green (but not plain olive green), complete with shoulder and elbow patches. German army pullovers are also easy to find in surplus stores but they are not pure wool and are prone to pilling. I don't think they wear them in the field either.
To speak to the original question, I have not seen one in any recent photo of British troops but I recall a photo of a soldier, a pioneer I believe, wearing a leather jerkin over his DPM combat dress. I do not have a leather jerkin, in case you were wondering.