COLD WEATHER British Army issue cotton green long johns. Y fly. Genuine issue, made in the UK. Fantastic quality that would cost a fortune to make today. Issued to British forces up to the 1990s.

Small = 73cm (28 - 30 inch waist). Inside leg approximately 73cm (29 inches) unstretched.
Large = 85 - 96 cm (33 - 38 inch waist)
XLarge = 97 - 108 cm (38 - 42 inch waist)