Encara no tenim significats per a "blood doublet".
1He was wearing a hat with roosters' feathers and a bloodred doublet.
2The man was wearing a bloodred doublet and a feathered hat, such as soldiers often wear.
3His clothing consisted of a bloodred doublet, a black coat, and two worn, hip-high leather boots.
4He was wearing a bloodred doublet, but his hat with the rooster's feathers had slipped off when he jumped.