Following on from the various Men's Fashion Weeks in London, Milan and Paris – not forgetting Florence's Pitti Uomo, here are trends to watch out for, straight from the runway. Experimentation is key, boys:
Pastel
Wear pink to make the girls wink... It is no longer a shade just for them, anyway. And not only shades of pink, it's baby blue, lavender and other pastel tones, too. For the really brave, go head-to-toe. 
Trend report: Menswear Spring/Summer 15
Versace, Jil Sander, Marc Jacobs

The Boys from The Block
Deviant behaviour actively nourishes the imagination of many designers, and this season it was the boys sleeping rough, hanging around skate parks and generally causing trouble that inspired the likes of Guillaume Henry of Carven.
Trend report: Menswear Spring/Summer 15
Gosha Runchinskiy, Alexander Wang, Louis Vuitton, Carven

Kindergarten
Menswear sweatshirts appeared printed with portraits of the characters from The Little Mermaid, pink flamingos and burgers this season. Plus there were shorts, socks and shirts - it was all very 'playground'.
Trend report: Menswear Spring/Summer 15
Louis Vuitton, 3.1 Phillip Lim, Etro, Marc Jacobs

Cropped tops
Usually one for the girls, shortened silhouettes are key for the male species this season too. The look was championed by JW Anderson, Versace, Dries Van Noten and Roberto Cavalli, amongst others.
Trend report: Menswear Spring/Summer 15
  • Roberto Cavalli, Dries Van Noten, JW Anderson, Versace

Birds of Paradise 
Birds, chipmunks and a whole zoo-land of other fun things were present on the Valentino catwalk, like something from a Disney movie. Then there were pastel rosette shapes at Hermès and giraffes throughout Salvatore Ferragamo...
Trend report: Menswear Spring/Summer 15
Hermès, Valentino, Salvatore Ferragamo

I'm With The Band
Leather pants (especially with chained belts) and bellies protruding from the open chest of rebellious vests and shirts made up this key trend. And in general, Hedi Slimane makes clothes quite specifically for this genre. 
Trend report: Menswear Spring/Summer 15
Balmain, Saint Laurent, Haider Ackermann, Lanvin

The Wild West
Not a large-scale trend, the Wild West's influence was apparent in just two men's collections – Tom Ford and Saint Laurent. Reminiscent of the eternal game of cowboys and Indians - jackets with fringe, neckerchiefs and cowboy boots are now wearable.
Trend report: Menswear Spring/Summer 15
Tom Ford, Saint Laurent 

Accessories, necklaces and chains
Less apparent on the women's catwalks anymore but very present for men, many variations and combinations of neck decoration can be seen for SS15... Even ones with smiley faces that double up as functional watch faces, as seen on the Moschino runway. 
Trend report: Menswear Spring/Summer 15
Moschino, KTZ, Versace