Versatile waterproof mat: ideal as a temporary sunshade base for garden furniture and as a protective underlayment for boats; its multifunctional design meets practical and environmental needs. Pressure distribution system: innovative concept creates a cushioned protective layer. Absorbs impacts, adapts to uneven surfaces, and provides soft, durable support as a base for pool constructions. Universal compatibility: edge protected underlayment provides a secure base for pool liners with optimized fit for frame pools and standard floor mats. Improves stability and alignment for long lasting installations. Durable quality: rugged multi layer technology blocks UV damage and water exposure; tear resistant material enhances outdoor durability. Use scenarios: - Home garden: place under outdoor furniture to protect the ground and improve comfort; suitable as a temporary shade support. - Boat storage: use under boats or covers to shield decks and reduce moisture during storage or maintenance. - Pool installations: base for frame pools and liners, delivering cushion, alignment, and a durable foundation for long term use.