CreeperHost

ArmorMovementMod by JSut210

This mod adds some advanced armors like parachute boots and helmets

armor

ArmorStatusHUD by bspkrs

ArmorStatusHUD is a client mod that shows your armor and held item stats on the HUD.

clientside HUD armor pvp opensource

Enderium Power Armor by tterrag

opensource armor tech

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