Board Thread:General Discussion/@comment-2605:E000:255F:7F00:D019:D0CC:8F41:7D1C-20180315182559/@comment-4010415-20180315185257

I'm pretty sure Yang, at least, is just wearing them as accessories. Her concept art showed her with armwarmers instead, and armwarmers tend to be worn just for fashion purposes.

Nora might be wearing them as accessories, or she could also be wearing them to help keep her hammer from slipping in her grip. Though, Ruby doesn't need gloves to keep a good grip on her scythe.