Try the Perfect Fit range like this one Perfect Fit Fat Boy Ultra Fat 5.5 Inch Penis Sleeve with Ball Loop - Lovehoney UK (other sizes are available) as these are very soft and squidgy. Very elastic so go for a smaller size to stretch to fit rather than a larger size than you are as it will flop about if too big.
The Fantasy X range are also soft, inbetween the one you have tried and the Perfect Fit ones.
Enjoy testing them all out 