It can be compressed to a smaller size when empty, making it easy to carry in bags, backpacks, or even pockets, perfect for travel, hiking, or commuting.   Material: Typically made from food-grade silicone and BPA-free materials, ensuring safe drinking and durability. Specifications Key Features It can be compressed to a smaller size when empty, making it easy to carry in bags, backpacks, or even pockets, perfect for travel, hiking, or commuting.   Material: Typically made from food-grade silicone and BPA-free materials, ensuring safe drinking and durability. Specifications SKU: GE779HA4CZ1F3NAFAMZ Weight (kg): 0.8