When hydration is the goal, this water bottle sling bag makes it a priority. Not only can it carry the trendiest water bottles up to 40 oz, but it also has an insulated back compartment perfect for sandwiches, snacks, SPF or anything else you want to bring with you on the go. This water bottle holder bag is perfect for walking, hiking and running. Stay hands free with the adjustable 24"-48" shoulder strap and let the good times flow!