These 592ml (550ml with lid on) capacity tumblers are the perfect alternative to single use cups, breakable glass and toxic plastic cups. Sip your cold or hot beverages of choice sustainably on the go. Ideal for smoothies, milkshakes, juice, water or that large cup of coffee or tea. Use at the beach, picnics, camping, festivals, barbeques, poolside, boating and outdoor dining. The double wall vacuum insulation keeps drinks cold for 8 hours or warm for 4 hours and is sweatproof so no condensation, keeping your tables and benches dry and clean. These tumblers are made from 304 grade premium stainless steel and have a durable premium matte powder coated finish. Sip straight from the cup, sliding lid or team with one of our reusable drinking straws. These tumblers come with a lid (great to keep flies and bugs out) however they are not leakproof and should be transported in an upright position. Hand wash only.