24 oz Standard Mouth bottles offer the same basic design and are available in over a dozen colors, but have a smaller diameter opening for easier drinking, especially when moving. The lower volume also equates to a lower price, costing $35 from the manufacturer. Two caps are available for the Standard Mouth bottles, the Sports or Flex caps.
If you don't need the insulation, but still want to go stainless steel, check out the lightweight Miir Slate 27. And if you're balking at the price tag on this one and don't mind drinking from plastic, our Best Buy Award winner, the Nalgene Wide-Mouth, is a time-tested favorite.