The Contigo Nalgene OTF On-The-Fly Water Bottle in green is a 24 fl oz BPA-free plastic water bottle with a flip lock top for easy sipping. This durable and sustainable water bottle is perfect for outdoor activities like camping and hiking, offering convenience and hydration on-the-go. With its sleek design and practical features, the Nalgene water bottle is a reliable choice for staying hydrated in style. Preowned and is tiny small minor scratches on it