Apex Expandable Roof Cargo Bag – 13.5 Cubic ft & 18 Cubic ft

You'll have room to relax on your next road trip when you stow your extra luggage or gear in a roomy, expandable roof bag. Made of waterproof, PVC-coated nylon, this roof bag straps right onto your vehicle's crossbars and side rails with 4 included tie down straps and expands in height from 14" to 18". Choose from sizes regular or large.

  • Straps to a roof rack for extra cargo space
  • Height expands from 14" to 18"
  • Waterproof, PVC-coated nylon construction
  • Weather-sealed zipper and storm flap
  • Includes storage bag
  • Available in two sizes: 38"L x 34"W x 18"H or 48"L x 36"W x 18"H
Item # Description Length Width Capacity Status Price Quantity
RBG-07-2 Regular Expandable Waterproof Roof Cargo Bag 38" 34" 10-1/2 - 13-1/2 Cubic Ft.

RBG-07-4 Large Expandable Waterproof Roof Cargo Bag 48" 36" 14 - 18 Cubic Ft.


Easily adjusts in height from 14" to 18" to haul between 10-1/2 and 18 cubic ft. of extra cargo on a vehicle roof. Includes all necessary tie-down straps for attachment.


New waterproof RBG-07 series roof bags expand in height (14" to 18") on a vehicle roof for carrying extra gear and cargo, saving valuable space inside. The RBG-07-2 roof bag features a 10-1/2 to 13-1/2 cubic ft. capacity while the larger version, RBG-07-4 roof bag, is capable of holding between 14 and 18 cubic ft. of extra cargo. Both sizes include (4) pre-assembled tie-down straps for attachment to an existing vehicle roof rack and cross-bar system. Features a self-repairing weather sealed zipper, a flip-over storm flap to protect the zipper. Made with durable PVC coated nylon to protect valuables inside. Includes a one year manufacturer's warranty.


Product Features

  • Works with existing vehicle roof cross-bars and side rails
  • Expandable height adjustment from 14" to 18"
  • (4) Pre-assembled tie-down straps
  • Weather-sealed zipper and storm flap
  • Waterproof PVC coated nylon storage area
  • Includes a storage bag with cinch drawstring
  • Available in (2) sizes, up to 13-1/2 or 18 cubic ft. capacity
  • 1 year manufacturer's warranty


Instruction Manual

Review Summary (Based on 1 Reviews)


5 Stars Car Top Storage

Lance Morley from CA wrote (June 21, 2015):

Well made and waterproof. Comes in it's own storage bag. Convenient straps to attach to the car top rails. I like the feature of being expandable up to 18 cubic feet. Perfect for small loads or large. Easy to attach and easy to store after use.