thule hull a port aeroA smart, secure kayak carrier thats kind to your hull and quick to use. The Hull A Port Aero uses durable, rubber coated contact points to keep your kayak stable on the roof and help prevent scuffs during transport. When its not in use, it folds down neatly to reduce wind resistance while driving. The integrated StrapCatch feature also keeps the straps under control during loading, so youre not fighting loose webbing in the wind. Hull A Port Aero