The inner glove of these gloves is made of soft knit fake fur, which stretches more than the outer glove. It doesn't use fourchettes because the fabric has more give.

Carefully turn each glove inside-out. and repeat the steps for the outer glove:

Unpick the fingers that need to be shortened.

Unpick the stitches between the webbed fingers.

Unpick the plastic tab that connected the plastic bag to the inner glove.

DON'T cut any fabric yet!