One of the most versatile functional fitness bags on the market. With 3 different handle variations, the durable PBX has been meticulously designed and rigorously tested to the Xtreme by fitness professionals to ensure the maximum number of exercises can be performed. Multiple grip positions include a central suitcase handle for single hand exercises, tight dual handles for controlled close proximity 2-handed upper exercises, and regular loose handles to complete all typical Sand Bag exercises. Equipped with NFC technology, smartphone users are given access to an extensive online exercise library. •Built in NFC technology directing users with smart devices to an extensive online exercise library •Internal webbing cage to reinforce external handles and seams •Ultra-durable casing made from strong synthetic leather • Suitable for indoor and outdoor use