https://minecraft.fandom.com/wiki/Minecraft_Dungeons:Mountaineer

Mountaineers wear a brown hood with a white face covering, brown-and-white colored sleeves and pants, brown boots and gloves, and a blue belt or sash around their chest. They utilize mountaineer axes and they have blue eyes.

The 1st variant wears a black hood with gold buttons and is seen wearing a green backpack, an olive belt, and black pants. The 2nd variant wears a reddish hood with an open coat with leather armor and wears leather boots and a brown sash around the chest and has diamond buttons. Both are often seen wielding mountaineer axes which they use in their attacks. Both variants also have different eyes, with the 1st having light-green eyes, and the 2nd variant having black eyes, similar to the Arch-Illager.