My favorite piece is the Oakley Airbrake googles.
They were expensive, about $200, but after a short while I realized they were worth it. Very clear vision, easy lens cleaning, best eye protection, and most importantly for me -- they do not squeeze my nose and let me breath much better than any other googles that I tried or owned.
A word of warning - you can wipe the lens with a damp or even dry cloth from the outside, but do not do this from the inside -- this will scratch up the inside of the lens.
Under my knee braces I use neoprene sleeves. The brand is Tru-Fit, but I haven't seem them around recently. They are just simple neoprene, and they help my bad knee tremendously by keeping it compressed and more stable than the knee braces alone. They can be hot, but some heat is better than pain later. I also started using either Mobius knee brace sleeves under the neoprene sleeves, or
Nike Mens Pro Hypercool Tights as knee brace sleeves and underwear (do not laugh!).
Another great purchase was Fox Instinct boots. They were very comfortable right out of the box, and quicker to put on than the Alpinestars with their booties.