Lifetime warr is crap in my opinion .. Yes ,they may repair it or replace it..But the catch--well you have to take it to their store or more commonly you have to ship it to them and pay for the shipping.. So it costs way too much in the end.Also if it is repairable---they just repair it and you dont get a new bag..
My advice --just buy the 4 piece set at walmart/sams for about $50 and it will last atleast 5 trips and more . Then buy a new set gain . Beats the 200+ prices for the lifetime warr for these expensive bags and that is the price for a single bag... Plus the additional shipping costs !!