The Osprey Sirrus 36 backpack in Sèvres Blue is a versatile hiking backpack for day hikes and multi-day outdoor adventures. With a volume of 36 liters, this backpack offers ample storage space while ensuring comfortable and balanced load distribution. The Sèvres Blue color ensures good visibility on hiking trails. Osprey's AirScape back panel system combines a tensioned mesh pad with a flexible frame sheet to allow air circulation between the back and the backpack, reducing sweat buildup during extended wear. Adjustable shoulder straps and a hip belt enable a customized fit for different body shapes. The main compartment opens via a lid with an integrated rain cover pocket, while the front stretch mesh pocket holds wet gear or items that need to be accessed quickly. Two side stretch mesh pockets securely hold water bottles, and the trekking pole attachment system allows for hands-free carrying. The hydration reservoir compartment accommodates up to 3-liter reservoirs with a special exit. Made from durable 210-denier nylon and 100-denier high-tenacity nylon, this backpack withstands demanding outdoor conditions. Its dimensions are approximately 55 cm in height, 35 cm in width, and 25 cm in depth, with a weight of about 1.3 kg. Compression straps stabilize the load and reduce volume when not fully packed. The integrated rain cover provides weather protection during unexpected rain showers. This successor model to the previous Sirrus versions impresses with improved materials and optimized ventilation features. Suitable for hiking, trekking, and outdoor exploration, the Osprey Sirrus 36 combines practical organization with reliable comfort for extended trail use.