This option is for divers that dive consistently in very thick under suits (above 250gsm Thinsulates, Weezles etc). We add 4cm to the chest, waist, seat and body cord. 3cm to thigh and calf, and 2cm to the bicep. Measure yourself in the NORMAL way do not add extra yourself. Please be aware that these additions will obviously make the suit rather baggy when a conventional undersuits (150gsm Thinsulate, Fourth element Artic's) are worn.
This is an option for an Ultra drysuit. Should only be ordered if a Ultra (compressed neoprene) type drysuit is also ordered