I have wanted to make a 506 T-back for a long time. The fabric is already finished, so we made it with very little modification. The new COEXIST fabric is a good enough shape to be able to compete with the tension of the new fabric, and the inside is all seam-taped. Three pleats on the front with concealed pockets. The cinch back is not needed, so a COBRA BUCKLE is used as an accent. If new fabrics hadn't been developed, we wouldn't have made this. 

cm	Length	Chest	Sleeve	Shoulder
(S)	62	122	57	53
(M)	63	127	58	54.5
(L)	64.5	132	59	57
(XL)	66	137	59.5	59