Cooler than leather better than mesh: perforated leather
Leather gear is very protective, offering the rider both impact, with armour, and abrasion resistance. Use by professional sportbike riders is a pretty good endorsement for its utility. Unfortunately leather, like anything else, has its disadvantages, two of which is weight and that it is hot to wear. While we cannot do much about the weight issue, adding small perforations to the leather will allow increased air flow and cooling without compromising protectiveness. While perforated motorcycle gear is popular with the summer rider, it is expensive, even more expensive than non-perforated gear. I’ll cover a possible method to perforate your own leather gear.