Whether you're a trail running enthusiast or looking for a technical, functional, lightweight, and breathable companion, the Pulse 12 Ultra trail running backpack from Oxsitis is specially designed to meet your needs. When venturing on steep trails, the Pulse 12 Ultra offers exceptional carrying comfort. Its lightweight design and 3D Coolmax technology integrated into the straps and back panel promote optimal thermoregulation, keeping you cool and comfortable throughout your journey. Developed in close collaboration with numerous athletes, this trail running backpack is the result of ingenious and robust design. Its quality and durability are guaranteed, providing reliable protection for all your belongings thanks to its Ripstop material, resistant and waterproof up to 10000 mm. The multiple storage compartments of the Pulse 12 Ultra allow you to carry all the essential gear for a trail run. Nutrition, hydration, smartphone, keys, jacket... everything can find its place in this backpack. Additionally, the expandable pocket at the back allows you to quickly store your poles or a small jacket without having to remove the backpack. That's not all! The backpack is equipped with the Easy Fix Pole Control quick-attach system, providing a practical solution to keep your poles within reach. Furthermore, it features a clever magnetic race bib holder that avoids puncturing your shirt to attach the bib. Materials: 40D ripstop nylon - 3D Mesh with Airback Control system for good back ventilation Waterproofness: 10000 mm Adjustment with side velcros to adjust your backpack according to its content and your size Chest and waist adjustment for better load distribution on the back and perfect stability 1 large-format waterproof zipped smartphone pocket with self-locking slider and earphone passage 2 compartments designed to hold 2 soft flasks of 500ml 2 compartments in Bi-elastic material for nutrition Central compartment segmented into several independent compartments easily accessible by a waterproof zipper 4 reflective loops for added safety that allow attaching a Mesh net accessory to increase the volume of the backpack if needed Expandable quick-access pocket (top and side) on the back of the backpack, allowing access without removing the backpack Sold with 2 soft flasks of 500 ml and can accommodate a 2-liter water bladder Backpack equipped with the Easy Fix Pole Control quick-attach system and a magnetic race bib holder Oxsitis backpacks are equipped with an easily accessible whistle without removing the backpack and reflective strips for added safety Weight: 220g Oxsitis Pulse 12 Ultra - Trail running backpack - Men's | Hardloop