CamelBak's Arc 240ml 2 pack is a pair of handy bottles designed to integrate with the Camelbak Arc belt systems. They attach via horizontal or vertical webbing and could also fit onto any rucksack or waist pack that features webbing straps.
Upgrade or replace your Arc belt with 2 Podium Arc 8 oz bottles. Compatible with the Arc 2 and Arc 4 belt systems. Includes cages.