Michel,
The mesh size is 22mm and the woven thread width is either 3mm or 3.5mm.
The edging is just the mesh wrapped around 8mm double braid polyester rope with a 3mm cord zig zagged through the squares in 3 rows.
This is then lashed on with 6mm double braid.
Initially I was concerned about the mesh size as I wanted it smaller but having used it I think it is perfect. I find it reasonably comfortable and even my better half says it is comfortable. The added bonus is it is just the right size to get a good hand hold when needed as ones fingers can fit through the mesh .
I hope this helps.