The Pinnacle 4L is a trail running backpack for men from the brand Nathan. It is perfect for your outdoor adventures with its lightweight of 141.74 g and excellent back support. Its numerous pockets allow you to carry all your essentials with you everywhere. The tapered back panels help wick away moisture for maximum comfort during your efforts. You are going to love it! Materials: 82% polyester, 5% elastane, 8% nylon, 2% rubber thread Two waterproof chest pockets with whistle Side pockets Kangaroo pocket Vertical pocket for hiking poles Vest shape Tapered back panels to wick away moisture Volume: 4 L Weight: 141.74 g Nathan Pinnacle 4L - Trail running backpack - Men's