A conditioning garment comprising at least one tube for passing heated/cooled fluid to heat/cool a wearer of the garment, the at least one tube terminating in a connector for connection to a source of heated/cooled liquid, the connector comprising a male part and a female part, a releasable latch (22, 34, 40) acting between the male and female parts (15, 17) to hold the male part in engagement with the female part, the releasable latch including a release member movable in a rectilinear path away from the connector to release the latch (22, 34, 40) and allow separation of the male part from the female part, the male and female parts (15, 17) being self-sealing on disengagement, wherein the male part defines a fluid passage through and co-axial with a fluid passage in the female part when the male part is engaged with the female part, the rectilinear movement of the release member being in a direction parallel to the common axis of said fluid passages; characterised in that: the releasable latch comprises a first part on the male part and a second part on the female part, the first and second parts (22, 34) interengaging when the male part is received in the female part, said movement of the release member disengaging the first and second parts (22, 34) to allow the male part to be removed from the female part; the release member is mounted on the female part, the release member moving the second latch part to disengage the second latch part from the first latch part and allow the male part to be withdrawn from the female part; the second latch part is spring loaded into engagement with the first latch part, the rectilinear movement of the release member away from the female part moving the second latch part against said spring loading to disengage the second latch part from the first latch part; the second latch part is elongate and extends in a first direction parallel to said fluid passage axis and the direction of rectilinear movement of said release member, the second latch part being movable in a second direction transverse to said first direction against said spring loading; the female part includes a push-button, depression of the button disengaging the second latch part from the first latch part; said push button is connected to the second latch part by a rod extending in said second direction, depression of the push-button moving the rod in said second direction to disengage the second latch part from the first latch part; and the push-button is spring-loaded to provide said spring loading on the second latch part. the releasable latch comprises a first part on the male part and a second part on the female part, the first and second parts (22, 34) interengaging when the male part is received in the female part, said movement of the release member disengaging the first and second parts (22, 34) to allow the male part to be removed from the female part; the release member is mounted on the female part, the release member moving the second latch part to disengage the second latch part from the first latch part and allow the male part to be withdrawn from the female part; the second latch part is spring loaded into engagement with the first latch part, the rectilinear movement of the release member away from the female part moving the second latch part against said spring loading to disengage the second latch part from the first latch part; the second latch part is elongate and extends in a first direction parallel to said fluid passage axis and the direction of rectilinear movement of said release member, the second latch part being movable in a second direction transverse to said first direction against said spring loading; the female part includes a push-button, depression of the button disengaging the second latch part from the first latch part; said push button is connected to the second latch part by a rod extending in said second direction, depression of the push-button moving the rod in said second direction to disengage the second latch part from the first latch part; and the push-button is spring-loaded to provide said spring loading on the second latch part.