Why not team a shearling jacket with a crew-neck t-shirt? As well as very practical, both items look cool teamed together. A look like this will help any mature gentleman outshine his peers.
Shearling Jacket with Crew-neck T-shirt Cold Weather Outfits For Men After 40
This combination of a shearling jacket and a crew-neck t-shirt is on the casual side but is also seriously stylish and extra sharp. Introduce a pair of black leather casual boots to the mix for extra style points. A fail-safe option combo appropriate for men in their 40s.