Shrinking Leather

Ive got a set of gloves which, when new, were fantastic. 3 months on, the leather has stretched and now there is about 2-3cm gap from my fingertip to the gloves tip on the pinky and the thumb.
on a few occasions the gloves got wet from riding in the rain, and when this happens, it seems to shrink the leather and i get my comfortable fit back. However when they dry out, ive got giant fingers again. which isnt all that bad
anyway, is there something i can do to permanently shrink the leather down?
on a few occasions the gloves got wet from riding in the rain, and when this happens, it seems to shrink the leather and i get my comfortable fit back. However when they dry out, ive got giant fingers again. which isnt all that bad

anyway, is there something i can do to permanently shrink the leather down?