Our hydration systems let you take in liquids without breaking stride. The Streamer II 2.0 L is specially designed for our running or biking vests, and backpacks. The Streamer II 3.0 L is specially designed for deuter backpacks. Its wide opening makes it quick to refill and is sealed with an ergonomic slide-clip system. The Streamer II 2.0 L is fully reversible for easy cleaning. This lightweight system is compatible with our 28 mm filter and is BPA free and made without PFAS. Features Made without PFAS This deuter product was manufactured by us without the use of per- and polyfluorinated chemicals. This reduces the use of substances that are harmful to the environment and health. PFAS is used, among other things, as a coating for rain protection, as they have water, dirt and grease-repellent properties. Instead, deuter now uses DWR (Durable Water Repellency) impregnation, which is harmless to health and environmentally friendly. Specification 2.0 L - 14 / 67 / 0.8 (H / W / D) in 3.0 L - 16 / 7.9 / 0.8 (H / W / D) in Material TPU ABS SI POM EPDM ST * D stands for denier. This describes the yarn weight. 600D corresponds to 600 grams per 9000 meters. * PES stands for polyester. PES fibres are very tear and abrasion resistant and hardly absorb moisture. * PA stands for polyamide. PA fibres are extremely durable and abrasion-resistant. They are also characterized by high elasticity and low weight.