Abs olutely

Mike Stalker

Ruben Baars

Michael Hoffman

Sergi Constance

Garry Chauviat

Heath Hutchins

 Kristian Saula

Tommy Hansen

Mostly Abs

Eric Turner

Erik Rhodes

Evan Downs

Garry Chauviat

Gerardo Mangual

Jairo Martins

A Little Leather

Gabriele Garito

 Garry Chauviat

Nikita Golovkin

 Logan Swiecki-Taylor

 

Leather Fashion

Colby Lefebvre

Joao Almeida

Renato Ferreira

Santiago Peralta

Kevin Baker

Dave Brett

Garry Chauviat

Today leather has specific meaning in menswear, which it didn't have through history. 

The Fashion Encyclopedia describes menswear thus:

For men, the most common accessories were a belt, a sword, and a pair of gloves. Men wore a simple leather belt from which they hung their sword, an item that no gentleman would do without. The sword might be highly ornamented, with its sheath and handle bearing jewels or other decoration. Men also tucked their leather gloves into their belt...  Men wore rings, long dangling neck chains, pendants, and even jeweled earrings.

Read more: http://www.fashionencyclopedia.com/fashion_costume_culture/European-Culture-16th-Century/Sixteenth-Century-Body-Decorations.html#ixzz2xHuEQsUq

We see some of this in period pieces, movies and such, we see some of this in current derivative men's fashion...  leather as fetish, fad,  opera, or normal wear...