Toss the red plastic cups and put away the glass pints—neither are made to survive the outdoors anyway. The 16-ounce, vacuum-insulated stainless steel Adventure Stacking Pint from Stanley is supremely durable, so it won’t break, shatter, or rust. This insulated pint glass also keeps your brew ice-cold for hours. You can stack them neatly in your camping kit or kitchen cabinet when you’re done. Hand wash is recommended.