Armour of Speed

This magical armour allows the wearer to triple their current movement rate (and provides two bonus action in systems where this applies), while providing the equivalent protection as magical chain-mail.

However, drag is a factor and the wearer can only carry one weapon or have the speed bonus reduced to double normal movement rate (and only one bonus action).

If the wearer is carrying a weight equal to half his/her current encumberance, then the armour does not provide any bonuses at all.