A black hide hat and cloak both lined with yeti fur. While both are worn at the same time, the wearer gains resistance to cold damage and doesn’t gain exhaustion from swimming in freezing water. 
The hat and cloak are sized for an elf until they are attuned together and adjust their size for the wearer. 
No bonus to AC

This crude armor consists of thick furs and pelts.

Notes: Automatically attunes when hat and cloak are worn at the same time