Favourite Lycra to Jerk In

I have a few very tight cycling skinsuits that fit so perfectly that I can cum handsfree by just thrusting against the material. I tried riding in one of them once to see if the magic worked when I was climbing a hill out in the countryside. Blew my load in the suit and thankfully because it was out in the middle of nowhere I didn't have to be completely quiet. Realized later that some of the cum worked through the fabric and that I'd been going for miles that way with white foam on the crotch. Have done that a few times since (tho I usually clean up more afterward).