Skip to main content

Big Agnes Women's Sun Dog 45L Backpack

Secure TransactionSecure Transaction

Keep It Light

Perfect for overnight trips or longer hikes, the Big Agnes Women's Sun Dog 45L pack is made for both fit and function. This 45L pack, designed by women, for women, features curved shoulder straps to keep your back happy, alongside a compression molded back panel and padded hip belt to spread the load. The Hoist Compression system keeps the weight inward and upward for longer trail days, while the storage and hydration compartments can hold enough snacks and water for those days you forget when exactly the sun goes down. Between the ultralight fabric and exterior webbing loops, the Sun Dog 45L gives you ample storage without breaking your back over those extra snacks that we all know we need.


  • 45L women's pack with adjustability and lightweight features for overnight missions or longer hikes
  • Anatomically curved back panel and body mapped foam for best breathability
  • Full-zip back panel for easy interior access 
  • Articulated Open Range Hip Belt that threads behind the compression molded back panel for productive load transfer to the lumbar, providing stability with flexibility 
  • Cut-to-fit hip belt provides a tight fit on hips and eliminates gaps between back and pack.
  • Dual hip belt stabilizer straps allow the upper and lower section of the hip belt to be adjusted separately for a custom fit 
  • Women’s custom fit adjustments on contoured shoulder straps and hip belt keep the pack flush against your torso. Load lifter straps allow fine tuning of weight distribution 
  • Hoist Compression system that pulls pack weight inward and upward for best distribution 
  • Cored aluminum perimeter frame, shoulder straps, and hip belt function as a fully integrated suspension system that provides more even weight distribution and balance
  • Top-loading access to interior with roll-top closure and two side webbing buckle closures that easily adjust with pack volume 
  • Internal 3L hydration bladder pocket with bladder hook, discreet tube routing port, and hose keeper clip on sternum strap to keep your fluids close
  • Hydration bladder pocket, two stretch mesh side pockets, front quick-stash pocket, and front zip pocket with key keeper, for all your storage needs
  • Webbing and bungee cord loops, discreet ice axe loop, and daisy chain loops on pack exterior for storing poles and more  
  • Includes two color-matched 1.6L removable Hip Pockets for stashing chapsticks and trail gems


  • Size: Women’s
  • Volume: 45L
  • Dimensions (H x W x D): 32” x 10” x 8.5” / 81 x 25 x 22cm
  • Top Opening: 17” / 43cm
  • Weight: 2lbs 13oz / 1.28kg
  • Hip Belt (Min / Max): 32” - 54” / 81 - 137cm
  • Load Range: 15lbs - 40lbs / 6.8kg - 18.14kg
  • Torso Length: 16” - 18” / 41 - 46cm