The Topeak MTM Trunkbag EX is a semi-rigid rack bag designed for practical use and everyday reliability. Dual moulded side panels combine with flexible 600 denier polyester to protect your gear and hold the bag s shape. A divided main compartment, mesh side pockets, and a rear water bottle holder keep items organised and easy to access. The bag mounts with integrated straps or connects directly to compatible racks using the built-in adapter plate for KLICKfix, Racktime Snapit, or MIK systems.Key Features and Benefits:Dual moulded side panels with semi-rigid construction: These panels form a stable structure that resists sagging and helps protect contents from minor impacts. This keeps your gear secure and maintains the bag s shape during travel.600 denier polyester fabric: The outer layer resists wear and light rain while remaining flexible. This helps the bag last through frequent use and changing weather.Divided main compartment: A central divider separates items to prevent shifting. This helps with balance and improves ease of access while riding or parked.Expandable panniers on each side: These compartments fold out for extra capacity when needed. This gives you flexibility to carry more without needing another bag.Integrated adapter plate for KLICKfix, Snapit, or MIK systems: Allows fast attachment to compatible racks without extra tools. This saves time and creates a secure connection for reliable transport.Rear water bottle holder: Keeps hydration accessible without needing frame-mounted cages. This helps free up frame space and supports quick access to fluids.The semi-rigid body offers protection and structure, while the integrated plate supports tool-free mounting. Expandable panniers give flexibility for added cargo when needed. These features combine to support consistent performance on daily rides or longer trips.This bag offers a practical way to carry gear without sacrificing rack compatibility, structure, or ease of use. Its thoughtful design makes it a dependable option for anyone looking to expand their carrying capacity with minimal fuss.Specification:Compartment: 1 divided mainTwo sides with expandable panniersCapacity: 8 LMax Load: Limited to rack maximum load ratingMaterial: 600 denier polyesterInsulation: Rigid EVA foamBag Attachment: Hook & loop fastenerIntegrated plate for installing optional KLICKfix / Racktime Snapit, or MIK AdapterSize: 35 x 21 x 19 cmWeight: 700 g / 1.54 lbFeatures: Water bottle holder, Shoulder strap, Carrying handle, 3M reflective strip, Safety light clip, Reflective elastic cord, Mesh pocket