What are the differences between the GEO TREKKING, GEO TREKKING ROC and GEO TREKKING GRIP pedals?

The LOOK GEO TREKKING range offers three different pedal models:

• The GEO TREKKING pedal is designed for urban riding or commuting, and features two different sides. One is flat, with a wide composite platform that can be used with any classic footwear. The second is fitted with an automatic cleat system.
• The GEO TREKKING ROC pedal also features two different sides, one automatic and one aluminium with a profiled tread to improve grip. This model is destined for a more offroad use.
• The flat side of the GEO TREKKING GRIP is covered with a profiled elastomer surface for improved grip in all conditions, making it ideal for commuting. The second side features an SPD-compatible system just like the other models.