Double Wall Vacuum Stainless Steel Insulated Water Bottle

Triple -Walled. Vacuum Insulated. Inner Copper Plating. Vacuum insulation keep cold for 24 hours and heat for 12 hours. Even if the water bottle is filled with ice or boiling water, the outer wall of the water bottle will not sweat or heat! The stainless steel water bottle is perfect for outdoor activities, gym, work or home use. Straight cup design is applicable to most car cup holders and bicycle cup holders, together with wide-mouth lid, which makes the bottles easy cleaning.