For there to be maximum external chest support, it is recommended you pick between the four different possible sizes: 

Size

Length

Code

Small            

100cm

05024-00

Medium        

126cm

05025-00

Large            

147cm

05026-00

Extra Large   

252cm

05027-00

 

Once you have the correct size, you will need to place it on your bare skin for the best support during your recovery. Start with the middle of the Cough-Lok pressing flat against your back. Make sure the Hawksley logo is facing outwards (rather than towards yourself) before feeding the end through the metal loop for the velcro ends to meet tightly. This should be positioned comfortably in the middle of your chest.

For further knowledge on why you would need a Cough-Lok, you can read more about it here.