I think this is about the different sensations of the fabric:

- 感度 is defined in the Shogakukan J-E Dictionary as as sensitivity (as in film); reception (as in TV); intensity or severity (as in earthquake). So, this word deals with certain qualities of "sensitivities" of a product. In this case, it is the special "sensitivities" that the fabric imparts.

- 感 alone has many definitions among which are feeling, sensation, sense; touch and feel (Nelson's Japanese Character Dictionary).

- The Vintage Seni fabric is described as having a highly different look or "visuals" and different senses of touch, or tactile senses which include an airy touch and a compact and dry touch. (Please see below.)

http://www.allbusiness.com/asia/1006125-1.html
As for "Vintage Seni", Komatsu Seiren has developed it by combining the highest level of finishing technology and artistic sense through the utilization of the intrinsic values of various yarns and fabrics. It offers a new sense of hand-made-like fabrics and brings about never-experienced unique impressions. Its characteristics are as follows: (1) Never-experienced sense of touch (neither like synthetic nor natural fabrics), (2) Natural wrinkle appearance; (3) a bulky and airy touch; and (4) a compact and dry touch. Its main applications include suits, jackets, pants and blouses

- For "秀逸な高感度テキスタイルです", could be something like: "It is a superb textile with highly visual and tactile sensations."