ABG Deckdrain 1250/HF360 is a geocomposite drainage layer comprising a high-performance single-cusped HDPE core with a woven geotextile thermally bonded to one side. The geotextile has a flap that extends beyond the core on one edge. The product is practically impermeable on one side. It is used as an engineering drain layer, allowing concrete to be poured onto the geocomposite.