This option is for users that dive consistently in very thick under suits such 400gsm Thinsulate suits or Weezle Extremes. 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 (250gsm Thinsulate, Fourth element Artic's) are worn.
This is an option for a Delta drysuit. Should only be ordered if a Delta (membrane) type drysuit is also ordered.