The Hydro Flask Water Bottle is a 21 oz preowned water bottle with a standard mouth design, perfect for staying hydrated on the go. This stylish blue bottle from the popular brand Hydro Flask is ideal for camping, hiking, and other outdoor activities where access to clean water is essential. Its durable construction ensures long-lasting use, making it a reliable choice for those looking to stay hydrated in style. Has a initial marked on the top with magic marker and name written on the bottom label with marker. Hydro Flask Water Bottle 21 Oz Blue Standard Mouth Preowned has initial marked on top of bottle in black marker and name written on the bottom of bottle on the tag. Great Condition