'Pizaine' is apparently another term for an aventail.    From Wordnik.com.  [roland Diary Entry] Reference

A mail collar hanging from a helmet is camail or aventail.    From Wordnik.com.  [Bath Time: Why Chainmail was invented - Lolcats 'n' Funny Pictures of Cats - I Can Has Cheezburger?] Reference

Head and Neck armor - the helmet was called the Bascinet which had a skirt of mail called an aventail to protect the neck.    From Wordnik.com.  [Archive 2008-02-24] Reference

The list above is missing cuisses (thigh armour) 'Ventail' ... there is an aventail, but something is telling me that isn't quite right.    From Wordnik.com.  [roland Diary Entry] Reference

Pursuant to these orders each ward was assessed for the purpose of levying 110 men armed with haketon, plates, bacinet with aventail, and gloves of plate; and sixty men armed with only haketon and bacinet.    From Wordnik.com.  [London and the Kingdom - Volume I] Reference