The perfect accessory at the pool, beach or gym. This durable h2go® bottle is made of double-wall 18/8 stainless steel for long-lasting use. Double wall enclosure stops condensation from building on the outer wall. The imprinted vacuum bottle features copper vacuum insulation for superior freshness and temperature retention. Threaded, screw-on stainless steel lid creates a tight seal to prevent spillage or leaks.