This Jersey is a 10/10 for hot days on the bike. The front material is close to a mesh type which lets in a ton of air through to keep you from getting too hot. *Ladies, because of the light materials be sure to consider the patterns or prints on your sports bra that will show through the front* - also I wish more companies cut their back jersey pockets with the angle this one which made it a great deal easier to reach in without having to stop or slow down on the bike. Super soft material and is definitely a race cut fit style.