Swiss quality & design - the double-walled thermos flask in the unmistakable SIGG look! Made of high-quality, 90% recycled stainless steel, thanks to the double-walled vacuum insulation, drinks are kept hot for up to 13 hours or cold for up to 30 hours, with a choice of classic TOP (screw cap) including removable stainless steel tea filter or with the practical, carbon-proof ONE top (one-hand operation) including removable plastic tea strainer, capacity 0.3 litres