Cylinder seal/sleeve

Hi,

I am on a search for a comfort seal that is reliable too. I bought a Leluv fleshlight style sleeve, it was very comfortable, but teared at cylinder lip after a mont of use at 5hg. vacuum

I have 2.5” ID cylinder.

There are many commercial available for pumping. They often mention the size its made for. Your pump is big so take the biggest.
What do you mean by fleshlight style sleeve? Was it arousing?

I made a very loose silicone sleeve myself from silicone. There are some silicone sleeves from PE vendors at ebay but Im not sure if they are stretchy enough for a 2.5 tube.

This one. The body sise has pussy lips and an opening
it is very soft and comfortable as a cushion, but 5hg of vacuum tears it.

This i have now and it feels like there is no cushioning.

What type of silicone did you use?