I got ours from boat covers direct. Fits perfect around the tower and was the medium range for material longevity and ran about $660 for our '05 Avy. Quick turnaround as well.
Hi All - New to the site, love the information for my '05 Avalanche C4 Storm Series III. We've had it about 3 years now in CDA, Idaho with the growing family and ongoing interest with wake surfing. Happy to have found you all!