The no 79 Ninja gloves by Extreme Cashmere have an open hole for the thumb and a cotton ribbon to keep both pieces together. Made from a soft cashmere with a bit of stretch. The brand only uses cashmere from goats from the Chinese region of Inner Mongolia.
Cashmere is a natural product and requires special care. Washing is possible, but only on a wool program. Put the gloves folded in the closet, so the cashmere keeps its original shape.