The Jobe Yukon is the thickest wetsuit in the Jobe range and is for the guy who wants to hit the water when everyone is in front of a fireplace. This steamer is made for the hardcore rider and comes with a aquakiller thermo liner. This sets the Yukon separate in the watersports market, as you won't find a steamer like this for such a price, period. The neoprene covered seems and back zipper will keep you warm and ready to face all weather conditions!