Whether you’re a seasoned pro or just starting out - you’ll know that staying hydrated on-the-move is always important, so Satisfy makes it easier than ever with this Hydration vest. Made using the Parisian label’s proprietary Justice™ technology, this quick-drying, odour-free fabric layer is packed with practicality - including two 500ml Hydro Flask® bottles and an emergency whistle - making it perfect for those ultra endurance exercises.