ArmorMovementMod by JSut210
This mod adds some advanced armors like parachute boots and helmets
ArmorStatusHUD by bspkrs
ArmorStatusHUD is a client mod that shows your armor and held item stats on the HUD.
clientside HUD armor pvp opensource
MachineMuse's Modular Powersuits by MachineMuse
A mod which adds modular power armor, power tool, and a tinker table to configure them. Uses UniversalElectricty or IC2 for energy.
armor tech survival
Simply Jetpacks by tonius11
A mod that adds jetpacks that work on Redstone Flux, and only that.
addon armor tech