Here's what other sites are saying:
The Salomon is a very light weight pack built on the Airvent Agility system for stability and comfort. Includes 2 storage compartments and 2 bottle holders. For runners or adventure racers who prefer carrying water in bottles, the 4D system provides convenient, stable access, and extra shoulder pocket for more storage.
Salomon designed the XT Wings 5 490cu in Hydration Pack for runners who prefer water bottles to contained reservoirs.
On Sale. Free Shipping. Salomon XT Wings 5 FEATURES of the XT Wings 5 Pack by Salomon Airvent Agility Harness construction LITE shoulder straps Quick fit belt Adjustable sternum strap 2 main compartments Mesh pocket 3D bottle included (600 ml/20 oz) Bladder compartment Custom system 4D System - Instinctive, quick and easy access to your poles while running and easy access to your bottle for hydration SPECIFICATIONS: Weight: 590 g / 1 lb 5 oz Volume: 8 L / 490 ci Dimensions: 53 x 19 x 8 cm Fabric: 70D PA 210T Ripstop PU
CamelBak Cloud Walker
$60 - $80
Osprey Raptor 10
$20 - $130
Salomon S-Lab Adv Skin 12Set
Platypus Tokul X.C. 8.0
Orange Mud HydraQuiver Vest Pack 2
Geigerrig Rig 1600
$144 - $157
Gregory Pace 3