I bought 4 rolls of drainage sheet for a retaining wall project. Didn't end up needing them. These are commercial grade drainage sheets and not the box store stuff. Never been stored outside and brand new. Each roll is 50 ft x 4 ft and meant to be used with a French drain system. $250/roll.
From the website:
Provides below-grade relief of hydrostatic pressure over foundation walls, when connected to a passive gravity drain or operational sump. Drainboard serves as a protection board layer for an installed waterproofing membrane and liquids during backfill. Use with Totalflow™ and perforated pipe outlets for a high-capacity collector and drainage system. Polyflow 10 is part of our comprehensive set of drainage composites and accessories to manage the flow of water.