O-rings.
Order your replacement Hypalon, butyl, or neoprene gloves.
Butyl gloves are highly impermeable to water vapor, gases, and toxic chemicals.
Hypalon gloves are resistant to abrasions, ozone, and oxidizing chemicals.
Neoprene gloves are lightweight and embossed with firmhold finish.
All gloves are one-piece seamless, 0.015 gauge, come with O-rings, and fit 8 to 8 3/4" openings.