Size and capacity - 15.6 inch compatibility: 40 x 13 x 30 cm - 17.3 inch compatibility: 45 x 16 x 32 cm - Spacious laptop compartment plus an accessory compartment for organization Laptop protection - Specially designed laptop compartment with a telescopic strap to provide added protection for your device Three wearing options - Three ways to carry: backpack, shoulder bag, or messenger bag - Straps can be hidden when used as a shoulder bag or messenger bag for a cleaner look Storage for travel and daily use - Extra space to store summer clothes for 2-3 days, making it suitable for short trips or extended days away from home Use scenarios - Daily work or school commute: carries a laptop, accessories, and essentials in a organized, versatile bag - Short business trip or weekend travel: protects your laptop while providing room for clothes and documents - Campus life or general work life: converts to different carry styles to suit your activity and environment Performance and practicality - Designed for dependable laptop protection, flexible wearability, and practical storage without sacrificing form or comfort - Compatible with 15.6 and 17.3 inch laptops, with dedicated space for accessories and everyday items - Maintains a professional, versatile silhouette suitable for travel, work, school, or daily commuting