Great arming cap. I wear it under my MRL Mail Coif and my MRL Visored Bascinet. Now the Arming Cap itself is a touch on the thin side, BUT if it were any thicker whatsoever my mail and helmet would be too tight. As of now they all fit perfect!! Not just trying to get reward points here. This arming cap is well put together and made to last, and mine has seen plenty of Renaissance Faires! Grab one, you won’t regret it 👍😊