the adjustable air inlet for clothing is of particular value to those wearing heavy protective clothing in warmer conditions , such as motorcyclists wearing leather protective apparel . the adjustable air inlet is installed in a passage through the clothing where it may be aligned with ambient airflow , e . g ., along the forearm , upper thigh , shoulder , or on the back of a glove or on a boot . inner and outer flanges are installed along the edges of the hole , the outer flange securing a resilient scoop over the hole . a duct is preferably provided from the trailing end of the scoop within the clothing to an area of the body that is most benefited by the airflow . the scoop is normally open , but may be closed by a latch extending from the forward part of the outer flange . a cooling insert may be installed within the scoop for additional comfort .