Dare to dream. Rêve Seating gives you a new reason to daydream. The contours of the chair provide lumbar support,while the perforated back gives it breathability, ensuring uninterrupted comfort. The Rêve Quick Ship provides your favorite daydreaming styles, but with the added convenience of being ready to ship within 48 hours! Chairs stack up to 12 high with the Sled Base. Use the 4190SL Chair Cart to stack theSled Base chair up to 18 high. Rêve Sled Base includes round back, all plastic seat and back(Black, Latte, Lapis), and Silver frame with ganging connector glides. Manufacturers LimitedLifetime Warranty.