A tan wool turtleneck and navy jeans are a pairing that every modern gent should have in his menswear collection. To bring some extra definition to this outfit, introduce a pair of black suede chelsea boots to this getup. We suggest this one if you're searching for a snug look that's as stylish as it is functional. So if you're searching for fashion tips on what to wear as you go into your 40s, this combination is definitely worth saving for later.