Water Bottle (opt)
Optional. If buying a water bottle, choose at least 1 litre capacity. We strongly recommend you do not use Camelback style bladder sytems ,as despite manufacturer’s guarantees these always seem to leak, plus the pipes will freeze up on Mont Blanc.
If you don’t want to buy a purpose made bottle, plastic supermarket bottles (obtainable in Chamonix on the first day of the course) are just as good, lighter, and arguably more hygienic.