HON Basyx Biometryx Commercial-Grade Fabric Upholstered Task Chair, Grey

Can the arm rests be left off?

Has anyone purchased a slipcover for this chair? If so, any information would be helpful.

What are the dimensions of the seat? I like to sometimes fold my legs in and the chair I currently have isn't deep or wide enough for that.

How wide is the seat? And how far up and down do the arm rest go?