Shoes for walking.

I bought my shoes last summer and It have damaged.
They have become damaged.

I would like to know what shoes would be more comfortable for me.
Instead of 'what', say 'what kind of shoes'.

If you have a big knowledge for walking shoes, please let me know. Thank you.
Instead of 'if you have big knowledge', say 'if you know a lot about shoes'!

Well done!

Shoes for walking.

> You go to your office to walk = you walk in your office ???? = I go to my bed to sleep .

I bought my shoes last summer and It have damaged. > I bought a pair of shoes last summer, and it is damaged now.

I bought my shoes > You mean you bought all your shoes last summer ??? Or you only have one pair ?

I would like to know what shoes more comfortable for me. >I like to know what ( types of )shoes are more suitable for walking, yet comfortable.

>  The shoes you are wearing now are comfortable , aren't there? Or else you would not have bought them . You should say "suitable" instead.

If you have a big knowledge for walking shoes, please let me know. Thank you.> If you are knowledgeable about shoes, please let me know . Thank you.

Big knowledge ? If you a broad knowledge of shops = knowledgeable .