500 Series Mens Seat Cushions The 500 series with Italian stretch pad features CVP technology (Continuously Variable Profile) and is moulded from a single block foam for lightness and breathability. It is therefore very suitable for cycling in hot weather. The perforated foam layer is located under the buttocks and improves blood circulation and moisture regulation, especially during long journeys (4 hours and more). Especially the quick moisture regulation with microfibre and permanent antibacterial treatment is very comfortable to wear. A net at the front improves air circulation.