Hi there.
The Denison smock was, of course, issued en-masse to British Paratroopers in WW2. However, most models had a quarter zip. There are examples of field-modified models with full zips, often referred to as 'officer' Denisons, but enough of these exist to justify buying a repro one? I don't want to reenact in something that barely existed, but I must admit the full zip model is much more practical.
Thanks.