Can kitesurfers sail up against the wind?
Yes, kitesurfers can sail up against the wind by edging their surfboard upwind at a slight angle relative to 90 degrees crosswind. Depending on the equipment and skill, kitesurfers can generally achieve an upwind angle of ~20 degrees.
Instruction: Can kitesurfers sail up against the wind?
Context: 
Response: Yes, kitesurfers can sail up against the wind by edging their surfboard upwind at a slight angle relative to 90 degrees crosswind. Depending on the equipment and skill, kitesurfers can generally achieve an upwind angle of ~20 degrees.