Have you looked into any wireless options? WF-1000XM3 are similar to N3, and way more convenient for outdoor use
Thx for the suggestion pal. I've got the Bose Soundsport for running and PXC 550 for travelling. The Sony wireless I tried (both TW and Over Ears) didn't impress me as much as what I currently own. If and when I do upgrade, I've got my eyes set on the B&O E8/ Sennheiser for Truly Wireless and the B&O H9i for over ears. (The PX7 & P9s from B&W are the only ones that sounded better than the H9i, but I couldn't stand the clamping force for over 30 mins)
But I, digress.
The reason for a beater pairs of wired are, I don't think I'm using the ZX300 enough. It's barely seeing 30-45 mins of usage a day. Often via bluetooth & the battery life takes a beating. Additionally, with wired, I'll have one less gadget to charge.