For Leather:
Keep it Dry
Wipe the Chair dry if the leatherette came into contact with water such as spills or sweat.
Keep it Clean
Light stains can be removed with textile cleaner or a sponge damped in water or a mild soapy solution, remember to wipe it dry with a clean cloth afterwards.
Avoid High Heat
High temperature such as long exposure to direct sunlight would damage the the top coating of the leatherette.
Avoid Sharps Objects
Although Scratch-resistant, sharps objects could still pierce and damage the leatherette at certain point.
For Fabric:
Keep it Dry
Vacuum any dirt off your chair. Remove remaining dirt with warm soap and water. If stains persist, gently dab the area with a spot cleaner. DO NOT rub or scrub.
Keep it Clean
Light stains can be removed with textile cleaner or a sponge damped in water or a mild soapy solution, remember to wipe it dry with a clean cloth afterwards.
Avoid High Heat
High temperature such as long exposure to direct sunlight would damage the the top coating of the mesh
Avoid Sharps Objects
Although Scratch-resistant, sharps objects could still pierce and damage the mesh at certain point.