PÜRTREK weighs in at 19.12 OZ. PÜRTREK uses high-quality 7075 Aircraft Aluminum poles with an incredible PATENTED water filtration pump system to give you years of hydration, reliability and enjoyment. PÜRTREK extended length: 55 Inches/ 135 CM PÜRTREK collapsed length: 36 Inches PÜRTREK travel length: 26 Inches "handle filtration housing removed."  (TSA Requirement: Trek poles can only be transposed in checked bags only).