When venturing into the great outdoors, having a reliable backpack is crucial for carrying your gear and essentials. For outdoor enthusiasts, durability and water resistance are essential attributes to consider when choosing a backpack. 509 offers a range of backpacks designed with rider-driven details to meet the needs of adventurers, whether they are hitting the mountains or embarking on everyday journeys. 

When it comes to water resistance, 509 backpacks are equipped with a PU coating applied to the inside, making them water-resistant. This coating provides a protective barrier that helps repel water, keeping your belongings dry in light rain or snowfall. While the backpacks are water-resistant, they may not be fully waterproof and may not withstand heavy or prolonged exposure to water. Therefore, it is essential to take appropriate precautions and use additional protective measures if you anticipate being in extremely wet conditions. 

Shop All Backpacks

PU stands for Polyurethane, and a PU coating is a type of protective layer applied to various materials to enhance water resistance and durability. The PU coating is commonly used in outdoor gear and apparel to provide a level of water repellency without compromising breathability. It forms a flexible and lightweight barrier that prevents water from seeping into the material, making it a popular choice for backpacks, jackets, and other outdoor gear. 

Melee Trail Backpack

509 Melee Trail Pack 

The 509 Melee Trail Pack is designed with the adventurer in mind, offering easy-access organization for all your necessary gear. It features a hydration-compatible design, allowing you to add your favorite 2L or 3L bladder for convenient access to water during your excursions. The innovative shoulder strap system with quick-connect Fidlock® buckles ensures easy and secure fastening, while strategically placed pockets provide quick access to essential items. 


Alias Travel Backpack

509 Alias Travel Pack 

The 509 Alias Travel Pack is a versatile backpack suitable for everyday use or far-off adventures. It boasts a spacious main compartment with a quick-access rolltop closure, ensuring efficient packing and access to your belongings. Additionally, a separate zippered compartment protects your laptop and its accessories, while multiple additional pockets keep your essentials well-organized. The passthrough back panel with a hidden security pocket adds an extra layer of safety for your passport and money, making it ideal for travel.