Montane transition 40a convenient and useful courier bag with a large interior compartment and multiple carrier options.rugged designmontanes transition 40 comes with a super rugged design with a raptor construction that is water resistant and will protect against abrasions'. '.strtoupper('f')or extra protection the bottom of the bag comes with a ballistic reinforcement.harnessthe courier bag comes with multiple different carrying options'. '.strtoupper('f')irstly, the pack comes with a rucksack shoulder harness which allows you to carry the bag like a backpack with an adjustable design that will stabilise the weight of the bag'. '.strtoupper('t')he bag also comes with a central grab handle for easy manual carrying'. '.strtoupper('e')ach side of the pack also come with a handy grab handle.storagethe pack comes with a large 40 litre maximum capacity with a large central compartment'. '.strtoupper('t')he interior of the pack also comes with a large mesh side pocket and another mesh pocket that is integrated into the lid of the pack'. '.strtoupper('t')he side of the courier comes with an id sleeve pocket ideal for when flying.features40l maximum capacityraptor constructionrugged designdurable zips with storm bafflereinforced ballistic basecomes with rucksack shoulder harnessinterior large mesh lid pocketadditional internal zippered side pockettough grab handles at each cornerlarge easy grab handleside id sleeve pocketbuy montane courier bags from chain reaction cycles, the world's largest online bike store.