Amazon has the Osprey Stratos backpack on sale from Steep & Cheap, a Backcountry.com clearance site.
Stratos/Sirrus Pack Overview
Men’s Stratos
Stratos 24 Blue or Black – $97.96
Stratos 36 Green S/M or M/L – $110.47
Stratos 50 Black S/M or M/L – $133
Women’s Sirrus
Sirrus 24 Purple or Black – $97.96
Sirrus 36 Black S/M – $110.47
Sirrus 50 XS/S S/M – $133
https://www.steepandche