Humeral Veil versus the Vimpa

The Humeral Veil is " is the name given to a cloth of rectangular shape about 8 ft. long and 1 1/2 ft. wide" and is used " by the priest or bishop in processions of the Blessed Sacrament in giving Benediction, in carrying the Host to its repository on Holy Thursday, and bringing it back to the altar on Good Friday, and finally in taking the Viaticum to the sick."

The Vimpa, on the other hand....