Made of a lightweight and semi-ridge high-density polyethylene
Graduations help you keep track of your fluid intake
Wide mouth makes it easy to fill
Loop-top keeps cap handy
Made from HDPE (high-density polyethylene) these bottles are very lightweight and durable making them great for backpacking. Wide mouth opening (63 mm) makes them easy to fill with ice or to clean. Weighs 4.4 oz.