PHILO Hydrasilk 1MM JacketMaterial: GEOFLEX (90% water impermeable, typically lasts 2 3 years, 1 year warranty and dries in about 3 hours.) Derived from the Greek term, Philos, the word Philo means, having a strong affinity or preference. The PHILO wetsuit jacket represents our love for building the next level of function first wetsuits. Whatever it is you do, remember to be passionate about it. Ichiban infused. GEOFLEX: A limestone based rubber that is engineered to provide