From the Pitti Uomo fair in Florence to Paris previews, greens abounded in men's fall collections.

In the run-up to men's fashion week in Paris, which kicks off January 21, Dunhill's designer Kim Jones told Esquire magazine: "Color-wise, look at rich greens, black and camel, as well as navy and gray."

Black, navy, camel, and grey are winter color classics, but the greens should have editors and buyers talking once the shows have wrapped up.

Scott Schuman, also known as The Sartorialist, remarked from the Pitti Uomo fair in Florence: "First, green as an impact color. I don't know if it's just me or if all the really cool guys seem to be working a dash of green into their best looks lately."

Even if it's just him - given that he's one of Time's top 100 design influences, that's already quite a lot.

And what else do men's designers have up their sleeves for the Paris shows? Paul Smith told Esquire: "I have designed a more relaxed selection of clothing with softer shoulders and construction, staying with a short jacket, and a choice of either very slim or quite soft, loose trousers."

And he continues: "Mixing up your wardrobe is acceptable, so that means you can add to your existing clothes and still feel stylish and perfect for the season. Accessories are more important, especially with people having a financial constraint. They add life to outfits you already have."