The MiiR® Multi-Pitch 23-oz Narrow-Mouth Bottle features MiiR's Thermo 3D® double-wall vacuum insulation to keep beverages hot or cold for hours on end. This durable stainless-steel narrow-mouth bottle cleans up easily, fits in most cup holders and has a handle on the leakproof lid to make it easy to carry. The MiiR® Multi-Pitch 23-oz Narrow-Mouth Bottle is fully backed by our Ironclad Guarantee and you can find it on Patagonia.com.