Hi Georgina,
We appreciate you taking the time to leave a review.
We're sorry for your inconvenience and we would like to clarify a few things.
We do not use an iron to apply our HTV we use an industry standard Geo Knight Heat Press.
The HTV we use is Bflex Gimme 5 Vinyl which is one of the lightest vinyls in the industry and lasts for 100 washes making it very durable.
Please see the link down below for more information on the vinyl we use.
https://b-flexamerica.com/heat-transfer-vinyl/cad-cam-vinyl/bf-gimme5-evo/