Hydrapak produces the highest quality hydration systems and will stand behind its products. Hydrapak offers a lifetime guaranty on its reservoirs and components against material failures. Additionally, Hydrapak branded backpacks are warranted to be free from defects in material and workmanship for a period of two years from the date of purchase. During the two year warranty period, Hydrapak will repair or replace, at its option, the defective part of a pack at no additional charge. This warranty is limited to the original purchaser of the product and is not transferable. All products considered defective may be required to be mailed to Hydrapak for inspection.Please fill out our warranty form and we will contact you with further information on submitting your product for review.