Brother mugs commonly come in 11 oz, 13 oz, 15 oz, 16 oz, and 20 oz capacities across available listings.
Most listings show ceramic or stoneware construction; one travel-style option is stainless steel.
Care varies by material: many ceramic/stoneware mugs are labeled dishwasher- and microwave-safe or dishwasher-safe, while some recommend hand washing to preserve decals. The stainless-steel stein lists hand-wash-only care, with instructions to dry immediately and avoid soaking.
Most brother mugs are described for hot beverages such as coffee, tea, and hot cocoa. Several listings also state suitability for hot or cold drinks, and the stainless-steel stein is described for hot or cold beverages.
Designs feature sentimental and humorous sentiments, for example: "World's Best Brother," "This Brother Is An Absolute Legend," and playful lines like "My Brother Taught Me How To Fight."