The Osprey Katari 7 Cycling Hydration Pack is a versatile and durable option for outdoor activities like hiking. With a sleek black design and vibrant color options like Cobalt Blue and Lime Stone, this pack is both functional and stylish. The one size fit ensures a comfortable and secure fit for any user. Additionally, the pack is treated with an insect repellent to keep you protected during your adventures. Stay hydrated and comfortable on your next hike with the Osprey Katari 7 Cycling Hydration Pack.