The MiiR® Climate+ Tumbler 12 oz. delivers sustainable sipping with 110% carbon offset, no new plastic, and a 100% recycled press-fit sliding lid. Made from ultralight 18/8 stainless steel using 25% less material, it features double-wall vacuum insulation to keep drinks hot or cold without sweating. Every purchase gives at least 1% of revenue to nonprofits that protect the environment.