SIGG Thermos 0.75 Liter
Here's what other sites are saying:
Fire up the stove in the morning, fill the Sigg 0. 75 Thermos with hot liquid, and enjoy a piping hot beverage later in the day. The stainless steel shell fends off the abuse of camping or travel, the vacuum-insulated interior keeps your liquid hot for up to 24 hours, and the push-button top opens and closes with the click of a button so there's no opportunity for spillage. Use this thermos for hiking day trips, car camping, boating, or tailgating at the trail head during the winter.