2-in-1 Nesting Food Bowl, 636 ml (21.5 oz), blue granite. S'well Eats™ fuels all your food needs in easy, eco-friendly fashion. Simply prep, nest, go-and eat! Built to keep fresh meals cold and hot longer, perfect for plan-ahead types and leftover lovers alike. The 636 ml (21.5 oz) exterior bowl is BPA and BPS free and features Therma-S'well™ technology - a triple-layered, vacuum-insulated construction made of high quality,18/8, food-grade stainless steel walls that keep hot or cold food temperature-controlled, plus a copper wall layer for a condensation-free exterior. Exterior bowl is hand-wash only. The 414 ml (14 oz) durable see-thru Tritan™ inner prep bowl with a leak-proof, pop-top lid nests inside the exterior bowl and is marked with convenient measurements for accurate portioning. BPA/ BPS free, fridge and freezer friendly and safe for the microwave and dishwasher. By choosing re-usable S'well you can help reduce the use of single-use plastic products that pose a threat to our environment.