Which are the best method to patch a gel saddle? what are some ways to repair a gel saddle's hole?

This is my problem is on this one:

https://www.lidl.de/media/product/0/0/4/5/1/4/9/selle-royal-atb-trekking-sattel-show-gel-rio-mit-kantenschutz.jpg

A ~1cm² hole on the cover of the gel. I have tried taping it and using Shoe-Goo
but these two options fall off very quickly. any ideas?

I am hesitant of using superglue.
A tight fitting lycra or spandex will cover the damage and can help prevent the hole from wearing larger. 

It also gives you the opportunity to change up the look of your bike.
I've never had much luck trying to patch, glue or otherwise repair holes in a saddle.