The Coastal Threads Trek Pack is designed to enhance your adventures, it's a perfect choice for a hands-free day hike, bike ride, or outdoor event. The exterior is crafted from premium 300D Repreve Our Ocean plastic threads made from ocean-bound plastic bottles collected within 30 miles (50 km) of waterways or coastal areas. The interior pocket is lined with 210D RPET material. Key features include versatile design with adjustable strap for use as a waist, sling pack or cross-body bag, slim-profile compartment with multiple pockets, adjustable bottle sleeve with silicone grippers that holds bottle sizes up to 40 oz., hidden, zippered travel compartment ideal for ID or important cards, reflective accents, and multiple utility straps and hooks.