Introducing your next ultimate gym accessory: the Ice Shaker x Bumpboxx Speaker Bottle – now in partnership with Unmatched. This powerhouse combines Ice Shaker’s double-wall vacuum insulation to keep drinks ice cold for 30+ hours, with Bumpboxx’s wireless speaker tech to blast your favorite workout tracks while you're either getting after your next set or just relaxing on the beach. Stay hydrated. Stay hyped. Stay Unmatched.