While not a biking-specific product, this hardwearing ‘duffel bag’ is ideal for lugging riding kit around. The 95l capacity of the large size tested makes it spacious but not so cumbersome that you can’t comfortably sling it on your back using the rucksack straps on top. There’s a mesh sleeve inside for valuables and a separate end pocket for keeping muddy shoes away from clean pants. The highly-durable waterproof and ripstop fabric is weatherproof enough to withstand UK conditions and tough enough to be thrown around by airport baggage handlers. This version isn’t big enough to max out a 20kg hold luggage allowance when filled with typical bike kit, but XL and XXL sizes are available too. It’s not super-cheap but should last you for years.
Price $180 (large size)