The ones I have are not mold in but are the soft foam that forms to your ear, just telling the guys at the match today that they are great, had them for about 2 years.hands down OTTO!
Very hard to beat the DIY kits from Radians thru eBay, they work well and fit well if you can follow instructions.
That said, for any range shooting, multiple shots, you’re kidding yourself if you believe ANY plug is enough, you need phones, even over them.
Proven fact, damaging sound gets transmitted from the bone around the ear.
My OTTO's took a crap after not much use, they won't take a charge. Called them and they want about 90% of what they cost new to repair them. They weren't 2 weeks over the 1 year warranty and only used about 15 times. I will never deal with them again as it's a known problem they have and they won't address it ( think Lab Radar).hands down OTTO!