Armor Type:  Garment under helmet

Brief Description:  An arming cap is a close-fitting, padded garment worn under heavy medieval helmets or chainmail coifs. It absorbs impact, prevents chafing, and distributes weight. Functioning much like a modern helmet liner, it was historically crafted from quilted linen, canvas, or wool and stuffed with natural fibers or hair to keep the metal from resting directly on the scalp.

The arming cap design generally features:

Padding & Quilting: Vertical or diamond-shaped quilted stitching keeps internal padding evenly distributed so it doesn't bunch up under pressure.

Coverage: It usually covers the top of the skull, extends past the ears, and often reaches down the back of the neck to shield the cervical vertebrae.

Fastening: Tie cords or straps placed under the chin ensure the cap stays anchored during combat. Historically, this piece was vital for a knight's survival, as the padding dampened the concussive force of blows from bludgeoning weapons and prevented cuts.