Important Information Material:TPU Package Size: 2L: 39cm x 18cm x 3cm/15.35" x 7.09" x 1.18" (Approx.) 2.5L: 47cm x 18.8cm x 3cm/18.5" x 7.4" x 1.18" (Approx.) 3L: 52cm x 18.8cm x 3cm/20.47" x 7.4" x 1.18" (Approx.) Overview: Featured by high sealing performance, the hydration pack can well prevent your water from leakage. Your shoulder and back can be kept from pain and discomfort because the hydration pack is lightweight. Made of TPU material, the hydration pack is eco-friendly and durable to use. With hanging design and foldable design, it can be stored away conveniently. The length of the 2L one is 39cm, width is 18cm and thickness is 3cm. The length of the 2.5L one is 47cm, width is 18.8cm and thickness is 3cm. The length of the 3L one is 52cm, width is 18.8cm and thickness is 3cm. The hydration pack is suitable for hiking, for cycling, for camping and so on. Note: Due to the light and the screen setting difference, the item's color may slightly differs from the pictures._x000D_ Please allow slight dimension difference due to the manual measurement. Specifications: Color: Blue, Army Green Volume: 2L, 2.5L, 3L(Optional) Features: Large Capacity. Leak-proof, Foldable Package Content: 1 x Hydration Pack(Others Not Included) _x000D_ _x000D_