DOT SUPER MAGNUM DISTORTION SERIOUS VL TORA TORA

The helmet is beautiful, just like the photo. Beautiful workmanship, incredible style. The only thing I wasn't convinced about was the internal finish, as I thought it would be leather or something less modern. The biggest problem I had was that the size I bought was too big for me. I've always had Japanese helmets (Arai and Shoei), and I've never had any issues with the fit in both. Do you have any suggestions for solving this problem so it doesn't fit so loosely? Best regards, and thank you very much!