I only used this during my children's sports days. How about using it outdoors? I think it's in good condition, but please refrain from purchasing if you are concerned. - Brand: Tiger Corporation - Model Name: Sahara - Capacity: 2 liters - Quantity: 1 - Bonus: Another one of the same item included (The bonus item does not include the instruction manual, strap, or inner cup. Please check the photos as they show everything included.) Thank you for looking.