For those who prefer a roomy, lightweight bottle with a smaller opening, Nalgene offers the Poly Narrow-Mouth Loop Top Bottle. It offers all the same advantages as the wide-mouth, with a top that minimizes the chance of spills and a cap that never gets lost. Printed graduations for easy measuring. Available in 16 and 32 fl. oz sizes.
32 fl. oz: 5 oz. / 16 fl. oz: 3 oz
32 oz: 8.8 x 3.9 inches 16 oz: 7 x 3.25 inches
Loop top means no lost lids
Very light for the volume
Safe, BPA-free high-density polyethylene (HDPE)