EI_Sparkes, To directly reply to your question. I use a Gentex hgu-55. Lightweight, kevlar. I use it in the chipmunk and Harvard. Read the caa info on helmets (believe it's a pink aic). It makes sombre reading. UK ALPHA is an excellent helmet but a little heavier. Don’t normally wear a helmet in a Spam can (perhaps I should). Available from
www.flightsuits.com or from headset Services at Shoreham.
Safe Flying
Wide