To me riding gear is really no different than everyday wear. In the winter you don't wear a tank top outside but rather a long sleeve shirt with a hoodie or jacket. In summer then the tank top and shorts. What I'm trying to get at is you really need to build your mc wardrobe. Gearing up is expensive and I have purchased seasonal gear over time. Mesh type for hot riding, and full on waterproof/warm for cooler riding. I have fieldsheer riding pants and joe rocket mesh pants.
The fly pants seem to be a good buy and the reviews are good. For me the kicker with pants is is it button or clasp. I have found that while standing up and sitting down the button style always comes undone, the clasp does not. Another key is will is zip down from the top or only from the bottom up. It seems that these will zip down from the top? It is nice when stopped and hot to zip from the top down a bit to get some cool air in. They have adjustable three way knee pads so that is good. Not all pants have hip foam but these do. Waterproof is OK but I have found that some pants have a waterproof barrier, like these do, but the outer shell is not. The problem with this is if in a downpour the material soaks up water and becomes very heavy. One way to prevent this is to hose them down with camp dry every season.
I really like the mesh pants for dual sport riding. You tend to get hot while riding two or single track. The protection will still be there and waterproof is kinda there but having air flow is mighty nice! Along with my gear I also have forma high boots. Awesome adventure boot. Lite and fully waterproof.
Hope that helps a bit.
'01 KLR 650, '09 Suzuki DL650, '08 Suzuki Bandit 1250, '16 CRF1000L, '09 KLX 250s