Burton Treble Backpack 21L kelp heather 2019 - universal backpack for school and leisure - material: 600D Polyester Two Tone Twill with TPE Backing / 600D Polyester with PU Backing - size: 46cm x 28cm x 17cm - volume: 21L - main zippered pocket - side mesh pockets for drinking - pocket with padding for mobile phone, glasses etc. - straps for skateboard