The nalgene wide mouth silo tritan bottle is a tried and tested classic one of the first water bottles to come through the nalgene gates and it is still on of their best sellers it has a simple yet effective design and of course it keeps you hydrated for your active and sporting needs the nalgene water bottle is made from bpa free eastman tritan copolyester so it is lightweight and durable and is suitable for warm and cold drinks this everyday water bottle features a loop top lid which me