The newest seat by Bride from the ZIEG line.  The ZIEG Ⅳ WIDE is a wide model of the full bucket seat ZIEG Ⅳ, which was built in pursuit of high safety and hold performance based on various race experiences and feedback from professional drivers.

This seat is about 30 mm wider at the thigh and 10 mm wider at the shoulder than the standard ZIEG IV, making it ideal for drivers with a larger body. 

This is the Super Aramid shell version.

Also, like the ZIEG IV, the entire shell has a "cat's back" line that deeply wraps around the driver, deeply holding you during high G acceleration and cornering. 

The ZIEG IV WIDE is an FIA standard acquisition model.  Weights 8kg or about 17.6lbs.