The HydroFlex suit is designed for warm-water diving, and its thoughtful features such as the flatlock stitching and V-shaped collar give it additional comfort. Printed designs and panels help the HydroFlex resist abrasion and create a fun stylish look. The design of new HydroFlex is based on a photograph taken of a coral reef in Flores Indonesia by Martin Colognoli. Martin is co-founder of Coral Guardian, an Aqualung partner since 2013, that works to preserve coral reefs in Indonesia. Don't let the good looks fool you though, the HydroFlex is all business when it comes to warmth, comfort, and durability. Designed with feel and fit in mind using ultra-stretch super-stretch material. This super-stretchy neoprene makes for easy on/off. Environmentally friendly, features 3mm high quality non-petroleum-based neoprene uses a PAH free formula. Flatlock stitching for comfort against bare skin. V-shaped collar for better comfort. Chest panel in mesh-skin for wind and abrasion resistance. O-ring seals on the wrist and ankles to limit water entry. Powertex knee panels allow excellent abrasion resistance with the added bonus of increased flexibility. Printed design on the shoulders for protection from abrasion. Printed design on the wrist to help keep the dive computer in place. Heavy-duty #10 rear zipper closure. Zipper tab pull leash and loop on the zipper bas for ease of self-donning and doffing. The heavy-duty zipper withstands force, corrosion, and other abuse. Adjustable