The image of a medieval knight moving slowly and stiffly under the tremendous weight of his costly armor as he readies for battle or a joust is firmly fixed in people’s imagination. But, according to art historian Matthias Goll, much of this vision is a myth. “It’s an old fairy tale that medieval armor was incredibly heavy,” he says. It was, in fact, relatively light and flexible. A remarkable example is this right-hand gauntlet recently discovered near Kyburg Castle in northern Switzerland in the cellar of a medieval building that burned around the middle of the fourteenth century.

More info can be found here: https://www.archaeology.org/issues/555-2405/artifact/12313-artifact-switzerland-medieval-iron-gauntlet