Nalgene LDPE 22oz ATB BPA-Free Water Bottle BPA free, made ade of Low Density Polyethylene (LDPE) and metals Patented hinged cap closure protects contents and keeps the drinking spout clean. Wide-mouth opening facilitates filling, emptying, and cleaning. Fits standard bicycle cages (Except the 32oz, that does not fit in any cages.), waist packs and backpack pockets. Textured grip give you firm handling in virtually all conditions.