The armor barely hinders you.

Prerequisites: base Strength 13+

Benefit: You gain proficiency with light, medium armors and polearms (bardiche, bec de corbin, bill, boarding gaff, crook, fauchard, giant-sticker, dwarven, glaive, glaive-guisarme, gnome ripsaw glaive, guisarme, halberd, hooked lance, horsechopper, lucerne hammer, mancatcher, monk’s spade, naginata, nodachi, ogre hook, ranseur, rhomphaia, tepoztopilli, and tiger fork.). You receive +1 AC in such armors and +1 on attack rolls with those weapons.

You receive +2 on endurance and investigation checks.

Special: This feat not provide proficiency for any shields.