The Nalgene Sustain water bottle features Tritan Renew material, made from 50% certified recycled content to reduce environmental impact. This durable and leak proof bottle is crafted from virtually indestructible BPA-free Tritan. It is easy to clean and dishwasher safe on the top rack. Ideal for all your daily activities, from the gym and office to camping and outdoor adventures. The bottle is suitable for both warm and cold beverages, with a temperature range from -40 to 212 degrees Fahrenheit. It is free of BPA, BPS, and phthalates. The narrow opening accommodates most water filters. Measurements in milliliters and ounces are marked for convenience.