- Expandable two-layer design, three size options - 28 L: Use the main unit as a compact shoulder bag or handbag for daily use (also functions as a 28 L backpack). - 43 L: Install the four wheels into the bottom grooves and open the first zipper to convert the 28 L bag into a large-capacity carry-on. - 58 L: Open the second zipper to expand fully for extended trips and extra luggage. - Why this bag solves common travel problems - Flexible capacity: carry just what you need day-to-day, then expand quickly when you need more space for trips. - Easy mobility: removable wheels let you roll the bag smoothly on rough or uneven floors and rotate 360° for tight spaces. - Durable protection: hard-wearing, scratch-resistant, waterproof Oxford cloth reduces wear and keeps contents protected. - Key features and materials - Material: wear-resistant, scratch-resistant, waterproof Oxford cloth. - Wheels: four removable wheels that push into dedicated grooves; easy installation—insert and go. - Mobility: wheels rotate 360° for multi-directional movement on a variety of surfaces. - Security: concealed buckle design on the side to secure and stabilize the bag. - Organization: 1 main compartment, 1 inner zipped wet/dry pocket, and 2 insert (slot) pockets. - Inner zipped wet/dry pocket separates wet or soiled items from the rest of your luggage. - Slot pockets provide quick access for passport, phone, keys, or other small items. - Performance and compatibility - Suitable as a handbag, shoulder bag, backpack, carry-on, or rolling suitcase depending on configuration. - Expandable capacity is compatible with typical carry-on limits when used as a 43 L configuration; fully expands to 58 L for checked luggage needs on longer trips. - Robust enough for daily commuting and durable enough for regular travel. - Practical use scenarios 1. Weekend trip: Start with the 28 L bag for the commute, then install the wheels and open the first zipper to create a 43 L carry-on for a 2–3 night trip. 2. Business travel with mixed needs: Use the compact 28 L mode for daily meetings and documents, expand to 43 L for an overnight flight, or to 58 L for multi-day conferences. 3. Family vacations or sports gear: Expand to 58 L to carry extra clothing, shoes, or equipment while keeping small items organized and separated in the wet/dry pocket. - Practical details for use - Installing wheels: push each wheel into its groove until seated; they are removable for storage or when you prefer a shoulder/hand carry. - Adjustment: use the concealed side buckle to compress and secure the bag when partially expanded or packed. - Organization: place toiletries or damp items in the zipped wet/dry pocket to protect clothing; use slot pockets for fast access to travel documents and electronics. This bag delivers a practical, durable, and adaptable solution for daily use and travel—choose compact portability or expanded capacity without switching luggage.