Features Adjustable straps on the bag's interior secure a car seat if you choose to pack with or without a base Sturdy structure is protective for car seat and base Back-packable with carry straps Luggage tag pocket Multiple carry handles Durable weatherproof material Adjustable straps on the interior of the bag secure a car seat when it's packed without a base Specifications Compatible with the following (sold separately): fits any combination Nuna Pipa Series Travel Bag-Kids