Need a backup or replacement hydration bladder for your beloved Pulse 3? This one-and-a-half-liter hydration system is uniquely shaped to fit perfectly in our Pulse 3 belt. Made by hydration technology experts, SOURCE VAGABOND, the entire system is BPA and PFC free, featuring a glass-like technology that inhibits bacterial growth and ensures a taste-free system. The wide opening and secure clip closure prevents leaks while guaranteeing refilling and cleaning remains a breeze. The silicon mouth piece resists bacteria, flows easily with bite pressure and comes equipped with a dirt shield to protect against dirt, sand, and dust.