Checked out a pair at the hunting expo at scheels.. they were breathable material of some kind and they were light weight..they would be slick i think.. I wanna say banded made them.. those old neoprene ones are sweat boxes and give a guy swamp balls all day
I picked up a super Vinci awhile back and the manual said to shoot some heavy loads threw it to break in the inertia system.. it had some problems with light trap load until I "broke it in".. now it's flawless.. suppose that's different with gas guns tho