NIKE T90 Laser IV Firm Ground Football Boots Firm Ground Studs - for use on short-grass fields that may be slightly wet, but rarely muddy. Swerve Zone Fins - Design for curling shots and deadly accuracy. Snug Fit - Fits close to the foot for superior touch. Dual-Density moulded studs - For superior traction. Power Zone - An adaptive shield that's made of plastic triangles placed on flexible strips to enhance shot power and accuracy.