The original Atlasware single Walled Stainless Steel Bottle. The stainless steel used is of high grade and is hardened to withstand shocks or mechanical stress and with perfectly matching leak proof characteristics. - Preserves flavor & freshness - Can store carbonated drinks - Suitable for any indoor or outdoor use - Unique design and shape - Manufactured by ISO 9001:2000 certified company using specially hardened high grade stainless steel