Marvel Avengers Stainless Steel Water Bottle for Boys - Bundle with Avengers Reusable Water Bottle for Home, School, Plus Stickers, More | Avengers Water Bottle. This Avengers superhero water bottle set includes a 14-oz stainless steel water bottle with colorful Avengers-themed artwork. Perfect for at home or on the go, this Avengers refillable water bottle is made of durable stainless steel and will fit alongside any other Avengers school supplies, sports supplies, or travel pack. Save plastic with this reusable Avengers water bottle. Great for Marvel Avengers back-to-school supplies. Officially licensed Avengers water bottle school supplies. This Avengers stainless steel water bottle also comes with Avengers stickers, a create-a-face sticker book, and a Beach Kids superhero door hanger.