If you leave Peltors in a hot cockpit, in the sun the ear cushions shrink permanently and fall out. I have three pairs that have done this. (various ages and models).
My Pilot DNC ANRs work very well, have 2 plugs and with UK and US Nato adaptors will fit all variants. I have come across R22s and Enstroms with both types so if you are going to rent aircraft it is as well to have both adaptors so it makes sense to buy a headset with 2 FW type jacks and 2 adaptors.