hash bubbieWomen's Slip on Shoes Low Top Canvas Sneakers Non Slip Fashion Casual Shoes, White, 5

Would a 7 fit 7.5 or should I go larger?

are they thick like vans or thin like the slip ons at walmart?

Are the insoles removable? I want the ease of a slip on sneaker but find they usually don't have as much arch support as I need.

Are these shoes soft, I see it says it is canvas. But is there some kind soft liner inside the shoe so your foot isn't touching the canvas?