The double-walled, stainless steel GO 4TH Container keeps your food hot for 4 hours and cold for 8 hours, making it the perfect travel container. The dual, screw lid system keeps foods from leaking out, so feel free to bring it along as you hike it into the office or pack it as you're summiting Denali. Made from safe, non-toxic materials, free of PBA, phthalates, nitrosamines and biologically harmful chemicals. Available in 12 and 17 ounce sizes. Folding spork included.