Technical features:

External Liquid seams for 100% water seal, flexibility and warmth.
X-Flex super stretch main body panels for flexibility and freedom of movement
UBS (Ultra Barrier System) back up system to eliminate flush
Thermospan core body panels for ultimate insulation and warmth
Smooth Skin chest and back panels to prevent wind chill
Blindstitch seams to reduce water entry
YKK zip with metal pull
Powertex knees for flexibility and durability
Gasket wrist seals to reduce flush