More than half way between a bag and a full box - it's more of a compromise on price than protection. It has most of the advantages of a box - the bike is held in an alloy anti-shock frame set in a 27cm high ABS plastic shell to protect the cranks, chain rings and rear mechs. The bag component is thickly padded with a three way lockable travel zip. Features: Hybrid hard-soft case / bag Fully padded, rip-proof nylon bag cover attached to impact resistant ABS plastic base 4 free running inline castor wheels with reinforced axles 2-way zipper Double shell thickness at wheel mounting points 2 double stitched carry/lifting handles Riveted and double stitched pilot handles at each end Flush fitting pilot handle attached to ABS base for pulling bag on 2 wheels Stitched luggage label / ID pocket Packs into itself for compact easy storage Interior Features: Foam padding on internal walls 2 padded wheel bags attached to internal sides Large storage zip pocket Adjustable aluminium Anti-Shock-Frame to secure the bike inside the bag Size: Exterior: L: 1320 x W: 840 x H: 390mm Interior: L: 1280 x W: 820 x H: 270mm