One Piece Sleeves, connected at shoulders. This is used to cover from wrist to upper arm.  If more than a size 12 from 14 would be stretchy, would suggest two piece sleeves.

Made from Milk Silk which is a luxurious Lycra Like material which is softer and more comfortable than Lycra and fully stretchable.
Allows ladies to wear three quarter length outfit and maintaining modesty.

Milk Silk Fabric.