These MAYIM Collapsible Water Bottled in gray and lilac are perfect for on-the-go hydration. Made from durable, BPA-free silicone, they expand to hold 20oz (500ml) when full and collapse to a compact size for easy storage. They feature a sleek stainless steel cap and includes a carabiner for convenient attachment to bags or backpacks. Ideal for travel, hiking, or everyday use. Excellent pre-owned condition. See photos.