They cost more ($44 right now on Amazon), but the Peltor Rangeguard have been more comfortable, for me. The first review on that page does a great job of comparing the two.

If anyone has an issues with the seal or comfort of the Impact Sports, I'd suggest giving the Rangeguards a try.

These do a good job. Peltor Sport RangeGuard RG-OTH-4 Electronic Hearing Protector, Ear Protection, NRR 21 dB, Ideal for Shooting and Hunting https://www.amazon.com/dp/B00UAM0MFG/ref=cm_sw_r_cp_api_i_p4U5Ab0EGTT1V