In over 25 years Briggs & Riley has never charged for a repair and that's saying a lot.  If another manufacturer offers a "Lifetime Warranty" its' usually on "manufacturer defect" and doesn't cover airline damage.........where does all your luggage repairs come from?  The airlines of course.  Have a look at the Briggs & Riley Simple as That Guarantee:

Briggs and Riley is the only luggage company that offers an unconditional lifetime guarantee. In the unlikely event that your bag needs to be repaired, Briggs & Riley is there for you. The simple as that® guarantee means if your bag is ever broken or damaged, they will repair it free of charge, no proof of purchase needed, no questions asked

The warranty covers the repair of all functional aspects of your Briggs & Riley bag for the life of your bag. It does not cover cosmetic wear or cleaning, damage of contents, or the replacement of lost or stolen bags and/ or its contents. If your bag or its contents are damaged by an airline and you wish to hold them responsible, we suggest that you claim with the carrier before leaving the airport. If you choose not to do this and instead wish for us to repair your bag, we will be happy to do so at no charge.  Due to the nature of certain types of repairs and normal wear and tear, it is not always possible to return your bag to its original condition. Due to discontinuation of a particular part of color identical replacement parts may not be available. Briggs & Riley will repair or replace a damaged parts with the closest matching part or component in the closest matching color.  You are responsible for the cost of shipping your bag to us, however, Briggs & Riley will return the favor and ship your bag back to you free of charge.  You also have the option to take the repair in to your own hands Briggs & Riley now have available self-repair kits.