The Standard for Offshore and Saturation Diving

Developed and patented in the 1970's, DUI Hot Water Systems made diving possible in the North Sea. DUI is still the standard for commercial diving operations around the world. For commercial diving, DUI invented the Hot Water Suit in the 1970's to provide an active heating system for divers using surface-supplied gas. By using active heating, divers can go extraordinary depths for an almost limitless amount of time.

DUI Hot water suit size chart

Suit Sizes	SS	SR	ST	MS	MR	MT	LS	LR	LT	XLS	XLR	XLT	XXLR*	XXLT*	3XS*	3XR*	3XT*
HEIGHT	62	64	66	64	66	68	66	68	70	68	70	72	72	74	72	74	76
CHEST	37	37	37	40	40	40	43	43	43	45	45	45	48	48	51	51	51
WAIST	31	31	31	34	34	34	34	34	34	37	37	37	40	40	40	43	43
FLOOR TO CROTCH	31	32	33	32	33	34	33	34	35	34	35	36	36	37	36	37	38
HIPS	39	39	39	42	42	42	45	45	45	48	48	48	51	51	54	54	54