The Samsonite Spectrolite 4.0 Underseat Backpack in Blue is designed for dynamic professionals seeking reliable travel solutions. This expandable 35-liter backpack features a laptop compartment for devices up to 17.3 inches (44 cm) with a smart sleeve function for secure device placement. Made from durable Strentex fabric, fully constructed from recycled rPET materials, this backpack offers exceptional tear resistance and water-repellent properties. The main compartment expands from 20 cm to 24 cm in depth, providing flexible storage capacity while adhering to carry-on dimensions of 36 x 45 x 20/24 cm. Organizational features include dedicated pockets for cards and tickets, a water bottle pocket, and multiple organized areas for efficient packing. The timeless design combines professional aesthetics with practical functionality, suitable for business meetings and weekend trips. The unisex backpack emphasizes durability through hidden seams and high-quality zippers, ensuring long-term reliability. The expandable design allows users to adjust the storage volume according to their travel needs, while the comfortable back panel and shoulder straps provide ergonomic support during extended use. This model is the successor to earlier Spectrolite versions, featuring improved organizational features and enhanced material quality.