Radical Light 21 is a versatile, minimal rucksack for climbing and light and fast alpinism.This pack is designed for technical ascents with its light weight, versatility and comfort on the climb and becomes a go-to for a wide variety of climbing adventures. It has a double closure system that works well on all situations, full or partially full. Itas equipped with a series of accessories that make it a very versatile rucksack: double removable ice axe holders, a top webbing that can work as helmet or rope holder; a front pocket and a zip that has access to the main space; a side hole for access to the water bag.A removable chest strap and a removable belt help distribute the weight in the best way.