Outdoor sports water bottles are designed specifically for outdoor scenarios and have many practical features. In terms of material, they mostly use lightweight and impact - resistant plastics (such as Tritan, PP, etc.) or stainless steel, which are easy to carry and resistant to falling and wear. In terms of design, there are large - capacity ones to meet the long - term hydration needs, and also shapes that fit the side pockets of backpacks; they are equipped with locks or leak - proof lids to prevent water leakage during sports; some also have thermal insulation functions, which can keep cold/heat, so that you can drink water at a suitable temperature outdoors. In addition, most bottle bodies have non - slip patterns for easy grip, and are often equipped with lanyards, which can be easily hung on backpacks to facilitate outdoor exploration.