SperryTop-Sider Men s Billfish 3-Eye Boat Shoe Tan/Beige 10.5 D(M) US

I noticed in the reviews that the stitching in the shoe is falling apart. Has that occurred a lot?Also i wear a 10 and what is the other sizes listed?

which models are good for winter usage

regarding the width: what is the difference between the C/D and the D(M)?

My laces wore out before the shoe what do i do?