Nelson Rigg CL-1060ST2 Sport Touring Tail Bag

Twenty five liters is pretty huge to begin with, but the CL-1060ST2 is able to expand enough to swallow a full face helmet and then some.

Features:

• Waterproofing: includes rain cover
• Lifetime warranty
• Ultramax fabric with maximum UV protection
• Expands to hold a full-face helmet
• Mounts to most tail sections and seats 
• Secures with 4 quick release straps 
• Molded EVA lid with Fibertech “carbon-like” accents  
• Semi-rigid walls maintain shape
• Reflective piping
• Lined interior 
• Lockable reverse coil zippers
• Hi-density rubber zipper pulls 
• Inner fastening straps to better secure contents 
• Mesh organizer under lid
• Flush mount reflective handle
• Fully expandable with a protective base material 
• 100% waterproof rain cover
• Adjustable shoulder / backpack strap 
• Main compartment measures: 14" L x 12" W x 9" H (12" H expanded) 
• Holds 24.78 liters / 33.04 liters expanded