Here's what other sites are saying:
The REI Sport Top stainless-steel water bottle gives you quick access to water while at the gym or on the trail. Easy-to-use, flip-up sipping spout is protected by a cover that keeps the drinking surface clean when not in use. Internal straw allows you to just bite and sip on the spout without tipping the bottle; but if you prefer lifting and tipping, simply remove the straw. Bottle is made with premium stainless steel that is toxin free; inner surface is finished with an electrolyte charge and dolomitic sand blasting; finish is completely BPA free. Certified food-grade polypropylene threaded opening and screw-top lid create a spill-resistant seal; food-grade silicon gasket is used inside the lid to help prevent leaks. Shaped body features a narrow point near the neck of the bottle for easy grasping. Thread pattern is compatible with many thread-on adapters for popular backcountry water filters. Food-grade polypropylene base adds protection from dents caused by dropping the bottle. Hand wash only; do not microwave or put in freezer. Please note: bottle is not designed for use with hot liquids.
REI Loop-Top Stainless-Steel Water Bottle 18 oz
REI Flip Top Stainless Steel Bottle 18 oz
REI Flip Top Stainless Steel Bottle 25 oz
REI Nalgene Narrow-Mouth Loop-Top Water Bottle - 16 fl. oz.
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