These bottles from Platypus are not designed just to take the shape of your hand, they are also light enough for people who like to drink on the go. They weigh 80% less than conventional plastic bottles and are also robust enough to be frozen or boiled.

Further, the bottles can be fitted with Platypus accessories such as the Taste-free Drink Tube to give you a complete hands–free hydration experience. The bottles come in 0.5, 1 and 2L sizes.

List Price: $5 to $8 (bottle); $16 (tube).