Environmentally friendly and durable, the Promo Brands Eco Grano Wheat Straw Water Bottle may just be the perfect custom gift for your eco-friendly clients. With a 420ml capacity, these personalised water bottles are reusable and made from biodegradable wheat straw, making them nontoxic (BPA free). So, doing your part for the environment is as easy as sipping from one or more of three stylish colours; mint, oatmeal and dusty pink.