Inateck Trekking Backpack 25L-30L, Waterproof Rolltop Backpack, Men's Mountain Backpack, Multifunctional Backpack, Suitable for Cycling, Hiking, Climbing and Outdoor Activities, Grey Black, 30L

This backpack features a unique design where the top can be rolled forward or backward as needed, secured by side buckles or tied directly to the top, allowing for flexible adjustment of capacity and shape.

• Expandable Capacity: When the top of the backpack is rolled up, the size is 31x18x47cm, about 25 liters. When fully extended, the dimensions are 31x18x52cm, providing approximately 30 litres of capacity. Inside the main compartment is a zipper bag and two mesh pockets. On the outside, an elastic band secures items such as hats, jackets and footballs. In addition, two waterproof zippered pockets provide additional storage
• Multifunctional organizer: this hiking backpack not only comes with standard side buckles or top buckles for use, but also allows you to roll the top of the backpack forward or backward as needed, or open it completely, to adjust the capacity and shape flexibly
• Excellent safety features: The main body of the backpack is waterproof to protect against rain. There are waterproof zipper pockets on both sides for secure storage. Side pockets feature iridescent reflective strips for better night visibility and increased safety when cycling. The zipper pocket on the shoulder strap has a survival whistle and a compass for outdoor emergencies
• Comfortable Vest-Style Straps: Vest-style straps incorporate a waist belt for balanced and stable carrying, adding comfort and convenience. Molded, breathable back panel on the back of the backpack provides excellent airflow and comfort, reducing back pressure and moisture
• Portable and practical design: A front elastic band and a attachment point for the bicycle light ensure light items or lights for cycling. Attachment points on the tape make it convenient to carry personal items such as water bottles and tools. Bottom right side includes a drain valve to release moist air, keeping the inside ventilated and dry