The Shape-Shift hydration system features a versatile baffle that can be zipped to reduce the bladder's profile or unzipped to increase fluid capacity. Made from thermoplastic polyurethane (TPU), the hydration bladder includes a 45-degree Blaster bite valve, an easy quick connector with Plug-n-Play capability, and a flexible, non-kinking Hydraflex drink tube. For convenience, the hydration system is reversible, making cleaning and drying simple. The bladder is designed with a patented wide slider opening for quick filling and a leak-proof seal. Additionally, it features RF-welded seams, which ensure superior molecular-level bonds. The hydration bladder is free of BPA and PVC and is made from FDA and EU-approved materials. It is also dishwasher safe and naturally anti-fungal. This product is manufactured by Hydrapak LLC for USWE Sports AB.