air fabric vest is not saftey rated, used by jockeys as a weighing vest its ultra lite.
it is made with thin memory foam inside, lined with
perforated synthetic fabric. the structure is soft and articulated, verycomfortable. On the sides of the chest there is elastic lycra fabric and closes with a practical zip on the front.
they are very light:
the large size weighs about 145 gr.; = 5.25 oz
the medium size weighs 135 gr. about= 4.75 oz
the small size 127 g= 4.5 oz