This 16 ounce capacity is large enough to fit your daily hydration needs. You can also store milk or coffee. The stainless steel repels any lingering flavors. Put your portable sports water bottle in your gym bag, backpack or briefcase as your daily companion. It can also fit in most auto cup holders. Keeps Cold 24 hrs, Hot 12 hrs: Take this easy to carry portable water bottle while hiking, biking. While sitting anywhere in any temperature condition, your cold drink will stay perfectly chilled up to 24 hours or your coffee, tea or hot drink will keep hot for up to 12 hours. The personalized insulated water bottle is a great gift for any occasion for family or friends.