Shopping Cart

Sierra Designs Boswell 35° Synthetic Hooded Sleeping Bag

See all products from Sierra Designs

Sale price $69.99

Leaves our warehouse in 2 business days.

Price Match Guarantee »

gift icon Know that you're getting the best price when you shop with us. We match the prices of our online competitors.

No Sweat Returns »

gift icon Shop with the confidence that if you're not happy with your purchase you can return it. We make returns flexible and easy.

The Boswell 35° Synthetic Hooded Sleeping Bag from Sierra Designs makes those amazing nights away from home more enjoyable. With a temperature rating of 35°, this Sleeping Bag is sure to keep you nice and toasty on a typical summer night. This Hooded Sleeping Bag is oversized to provide the room you need to find the right position while you sleep. There’s some nice, soft pongee fabric to bring extra comfort around your neck area which transitions to SierraLoft™ synthetic insulation to bring perfect warmth all-over once you crawl and settle into the Boswell. Don’t let a damp night disturb your slumber; the Boswell boasts a durable water repellent (DWR) coating on its shell. Featuring a dual-sliding, anti-snag zipper, adjustable hood, and its internal stash pocket, the Boswell 35° Synthetic Hooded Sleeping Bag combines comfort and convenience! Rest easy.  

The Sierra Designs Story

Founded in 1965 by Bob Swanson and George Marks, Sierra Designs was built on the basis of providing excellent gear to adventurous spirits from all walks, whether you’re an expert thru-hiker or a first-year summer camper. Bob and George first met as co-workers at The Ski Hut, an outdoor equipment retailer in Berkeley, where the two often dreamed of owning their own business. This outdoorsy duo got their wish one day when a wealthy benefactor gave them the money they needed to seed their new company: Sierra Designs. The Sierra Designs family is still composed of outdoorsy folks who all happily to do their part to protect our environment. For them, it means making products with as little impact to the environment as possible such as using recycled material and creating an environmentally-friendly water repellent that’s PFC-Free. As they like to say, “Think outside, because happiness is found in the adventure.”


  • Material: Recycled 68 Denier Polyester Shell
  • 35°F Rectangular Hooded Sleeping Bag
  • 75 Denier Soft Pongee Liner
  • PFC-Free C0 DWR
  • Fill Weight: 48oz
  • Soft Pongee Fabric around Neck Area for Extra Comfort
  • SierraLoft™ Synthetic Insulation Captures Warmth around Your Body
  • Oversized Fit allows Sprawling and Easy Repositioning
  • Dual-Sliding Zipper Increases Venting
  • Hood Cinch Locks in Heat
  • Internal Stash Pocket
  • Anti-Snag Tracks Works Easy with Draft Tube Along the Zipper
  • Easy Roll-Up Straps Attached to Bottom of Bag for Compact Packing
  • Fits up To 78"
  • Length: 84"
  • Shoulder, Hip, and Foot Circumference: 68"
  • Stuff Sack Size: 11” x 15”
  • Weight: 4lb 5.4oz
  • Lifetime Warranty

Customer Reviews

No reviews yet