This Sightlines gel ear pad model is fully compatible with many Howard LeightA(R), Peltor(TM), and Ops-Core(TM) headsets without any adapter plates. The adhesive is non-permanent and pads can be removed dozens of times, or even swapped between headsets, without degrading the bonding strength. With our adapter plates, you can use these same pads on an even wider selection of headsets. We use the same type of adhesive that is used on military headsets to hold pads in place. There is an outer lip on this pad that slides under the Howard LeightA(R) headset retaining clips and provides a secondary method to secure the pads These are upgraded gel ear pads that are the first with relief cuts for glasses to pass through without breaking the noise seal and causing headaches from increased clamping pressure. Our latest design features a rim to slide under the clips on headsets like ImpactA(R) Sport and a non-permanent, pressure-sensitive adhesive for a much more secure fit and peel + stick compatibility with snap-in plastic adapter plates (available separately) to fit headsets from dozens of manufacturers. Best results with straight-style glasses arms, and our super-soft and flexible silicone gel produces an amazing seal with other types of glasses arms. Our unique horseshoe-ring shaped, grooved front face and 1/4" inch of silicone gel provide significantly better softness and sealing vs. competitors' pads. When headset is lowered as much as possible, glasses arms can be dropped into relief cuts and will sit in a protected channel just above the ear. Using the relief cuts is completely optional. Our gel pads work like normal pads when glasses are not in use. Use of super-premium acoustic memory foam and allowing for a closed head seal leads to impressively better sound deadening. Designed by a Marine Corps combat veteran, made in the USA, and designed for use in any climate. Polyurethane outer skin is UV-resistant, waterproof, and much longer-lasting than vinyl used on cheap pads. These gel pads are tough. Plus, we warranty our pads for an entire year, regardless of what continent or climate you operated in. This model is also compatible with any headset that utilizes oval pads that are 4" tall x 3" wide and allow users to peel off / remove their original pads and apply new adhesive-backed pads. Compatible with 3M(TM) WorkTunes(TM) Wireless / Bluetooth model (please do purchase our Peltor(TM) HY79+ HY80 cloned adapter plates if you own the old-style WorkTunes(TM) headset that only has an AM/FM radio) 3M(TM) Peltor(TM) RangeGuard(TM) 3M(TM) Peltor(TM) Sport Tactical 100 / 300 / 500 AwesafeA(R) GF01 AxilA(R) / SportearA(R) Trackr(TM) CaldwellA(R) E-Max (standard and low-profile) GLORYFIRE(TM) M8056T Howard LeightA(R) ImpactA(R) Sport (including BoltA(R) version) Howard LeightA(R) ImpactA(R) Pro Howard LeightA(R) LeightningA(R) Howard LeightA(R) SyncA(R) Howard LeightA(R) Verishield Howard LeightA(R) VikingA(R) KaskA(R) SC1 / SC2 / SC3 MpowA(R) Noise Reduction Safety Ear Muffs Ops-CoreA(R) AMPA(R) (note: outer lip may overlap and need to be removed with knife / scissors, but this is only an aesthetic issue) NoiseBusterA(R) PA4000, PA4100, and PA4200 Peltor(TM) RangeGuard(TM), Sport Tactical(TM) 100 / 300 / 500 Pro EarsA(R) - multiple models compatible; customer must verify that their original pads can be peeled off and our oval 3 x 4" pads can be glued on RadiansA(R) - multiple models compatible; customer must verify that their original pads can be peeled off and our oval 3 x 4" pads can be glued on TR IndustrialA(R) Forestry Safety Helmet and Hearing Protection System WinchesterA(R) Passive Folding Earmuffs / Low Pro Passive Folding Earmuffs