Shimano 2013 Hydration Bag

Imagery via Madison 

The Shimano Unzen Hydration Bag 

The bag promotes the use of new materials and designs, rather than co-opting someone else’s. The bags all use very stretchy material that lets you fill them full, yet keeps things snug if it’s not packed to the gills. Shimano ACCU3D technology keeps the material stretchy, allowing you to feel it up till your hearts content. Additionally the material keeps the bag body-hugging, and aero, with no loose straps anywhere.

Called The Unzen the bag part of their 2013 collection, which also includes backpacks and messengers, is its top-end race and trail packs. Coming in with cargo capacity of  6L, 10L and 15L, they'll all have the Rider CrossFit Harness which does away with the need for a waist strap and keeps the pack stable.

The Unzen bag is side opening. The idea being that you can just shuck one arm out and swing the bag round, ready to access the insides, rather than undo a couple of straps and take it off completely. All the zip-pulls are big and glove-friendly and there’s an adjust able shoulder-yoke to fit different back lengths. The Unzen bag will go for £75-£100

In addition to the Unzen bag theres the more simple bag Rokko (pictured below). It’s 12L and won’t come with a bladder. It has lots of pockets, side mech and a media pocket.