This is the DUI CF200SE Select Series Men&';s Shoulder Entry Drysuit for Scuba Diving Features: Drysuit fabric is patented crushed neoprene - 3mm neoprene with a heavy-duty nylon shell crushed to 1mm thickness - black Shoulder-entry zipper Suspenders Warm neck collar Apeks swivel inlet & adjustable, automatic exhaust valves and 36" inflator hose withoversized quick disconnect CF200 knee pads Includes a DUI drysuit bag, talc and ZipStick(TM) Only DUI has crushed neoprene. DUI takes 3mm neoprene, builds a drysuit then puts it through a process that actually off-gases the material and crushes it to 1mm. This makes a dense, stretchy material that offers the ultimate in protection from the environment. The drysuit of choice for wreck divers, commercial divers and divers looking for a drysuit that is virtually bulletproof. Please note: All dry suits are made to order, they can take up to eight weeks to manufacture. All dry suit purchases are final and are not covered under the House of Scuba returns policy.