I have a pair of winter /climbing gloves. Each glove has a small loop on the ring finger, top of the glove. Why? What's it for?
The loop allows the gloves to be hung, on a carabiner for example, such that the fingers point up preventing the gloves filling with rain or snow.
For example, see the manufacturer's description of these gloves:
Finger-mounted clip-in loop enables gloves to be attached to a carabiner with finger-tips facing up, eliminating snow-fill