Choose from a variety of fun colors or patterns! This 26 oz Sport Stainless Steel Bottle is composed of 304 stainless steel internal external 201 stainless steel, insulation and cold can be up to 6-12 hours, 750ml capacity, compact and lightweight.The smart water bottle is ideal for easy travel, perfect for outdoor sports, work, beach, school, office, picnic, yoga, hiking, camping, cycling, running, etc. Simple and practical, it is the best gift for friends, family, children, sons and daughters.