Expandable Backpack Big SJ Gang Unibraid

A backpack that keeps up with your day: the Unibraid by SJ Gang is built for students who refuse to choose between style and practicality. Its signature satin wings move thanks to an air-activated system controlled right from the shoulder strap — a standout detail that sets it apart from any ordinary school bag.

The ergonomically shaped back panel with contact-point padding and mesh-lined shoulder straps deliver genuine comfort, even on the heaviest school days. The reinforced base keeps the bag upright and structured whether it's half-full or packed to capacity.

Need more room? Side zips expand the volume from 22 to 29 litres, making it just as useful for field trips as for regular school days. The front pocket, flap pocket with multicolour braid detail, and mesh water bottle pocket keep everything within easy reach. Reflective inserts add a practical safety feature for low-light commutes.

• Capacity: 22 l – 29 l (expandable via side zips)
• Dimensions: 27 x 41 x 16 (+6) cm
• Material: Polyester
• Back panel: Pre-shaped with contact-point inserts and integrated base
• Shoulder straps: Padded, fabric and mesh lined, anatomically shaped
• Pockets: Front pocket, flap pocket, mesh side pocket for water bottle
• Details: Satin wings with air-activated strap system, multicolour braid, reflective inserts