Im not sure exactly what material i have but i asked for the softest stuff available and i always get extra material taken off the top as well as the side. I have almost given up getting a tight set of earmolds, I do still have one set that fit nice and tight but they are made for a specific purpose so i never wear them for more then 12hrs at a time
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Glad you are getting use out of the audio shoes
Shore Rating Guide
Silicones offer superior acoustic sealing properties and are suitable for severe to profound losses, as well as cases where there is an allergy problem.
Choosing the shore ratings
The degree of flexibility of a material is rated as Shore A. The higher the shore rating of a material, the more rigid it is and conversely, the lower the shore rating, the more flexible it is.
Shore A rating: 25, 30, 40, 70
Description: Extremely Soft, Very Soft, Quite Soft, Soft
A higher degree of dexterity is required to manipulate a very flexible earmould into the ear. Hearing-aid wearers with dexterity problems who require soft moulds are best fitted with high shore rated materials for ease of use.
Might be worth asking for a different shore rating. My ears don't seem to like the 25 shore rating, but my ears can with stand the 30 rating.
The shore rating is only available for the soft earmolds and are all suitable for severe to profound