The Topeak Rackloader Drybag is a compact, strap-on cargo bag that provides up to 12L of weatherproof storage for bikes with front or rear racks. It uses a durable 600D polyethylene fabric with taped seams to keep contents dry in wet conditions. The engineering grade polymer structure helps the bag hold its shape under load. It mounts quickly using two 80cm TPE straps and works with Topeak TetraRack systems, BarRack, and most standard racks.Key Features and Benefits:12L weatherproof storage with taped seams: The bag uses 600D polyethylene fabric combined with sealed seams to prevent water ingress during wet rides. This protects tools, clothing, and essentials from moisture. You keep gear dry and usable across changing conditions.Engineering grade polymer construction: The structured polymer base supports the bag under load and reduces sag on rough roads. This maintains stability and balance on the bike. You get consistent handling even when the bag is full.Dual 80cm TPE mounting straps: Two long, flexible straps secure the bag firmly to a wide range of racks. The material resists stretch and wear over time. This ensures a tight fit that limits movement and keeps cargo stable.Wide rack compatibility and compact form: The bag fits Topeak TetraRack M1/GR1, BarRack, and most front or rear racks. Its 41 x 22 x 16.5 cm size offers useful capacity without excess bulk. You gain versatile storage that suits commuting, touring, or day rides.Reliable storage that stays secure and keeps contents dry is a key requirement for rack-mounted luggage. The weatherproof fabric and taped seams prevent water from reaching stored items, while the structured base keeps the bag stable on uneven surfaces. The strap system allows fast attachment and removal without tools, which supports regular use across different bikes and rack setups.This bag gives you a practical way to carry more without adding complexity. Its simple mounting system and durable build make it a dependable choice for daily use or longer rides.Specifications:12L capacityEngineering grade polymer, 600D Polyethylene fabric, TPE straps2x80cm straps41x22x16.5cm362g (bag) + 47g x 2 (Straps)