Polaris 2889263 - Adventure Tall Liner Bag Waterproof material makes it perfect for riding and keeping your stuff dry Made for the Lock & Ride Flex Adventure Tall Tunnel Bag Required, Sold Separately: Lock & Ride Flex Adventure Tunnel Bag, Tall, 2884456 Fits: All Matryx 129 and longer, all snowmobiles 129 and longer with Full Tunnel and Lock & Ride Flex Adapter Kit The Adventure Tall Liner Bag seamlessly fits within the Lock & Ride Flex Adventure Tall Tunnel Bag to provide additional weather protection. Thanks to its waterproof material, you can ride with confidence knowing your gear is protected.