Delta International is the distributor of FRIO UK products in Pakistan https://frioworldwide.com/partners/. FRIO UK covering over 70 countries around the world, producing a range of cooling products using its patented technology, including wallets for insulin and other temperature-sensitive medicines, drinks coolers, cosmetic wraps and head, neck and wristbands.
A FRIO wallet works through a process of evaporation which ensures its contents are kept cool and safe. The FRIO Wallet has been independently tested and certified regarding its effectiveness. It will keep the insulin within safe temperatures of 18-26°C for a minimum of 45 hours, even in a constant environmental temperature of 37.8°C.