Big Agnes Summit Park 15 - Long

Priced: $299.94 - $339.95 Rated:   - 5 stars out of 5 by 1 review.
Big Agnes Summit Park 15 - Long
Zoom In
Color: Lake / Gray
Visit our Daily Deals for great products at low prices.
Big Agnes Summit Park 15 - Long -

The Big Agnes Summit Park 15 Sleeping Bag follows the tradition of Big Agnes Park Series Sleeping Bags but instead of using Polarguard Delta, the Summit Park uses 650 Goose Down insulation. By using Goose Down insulation in the Big Agnes Summit Park, you have the best of both worlds in room and weight. The Summit Park is not only geared for car camping but with a weight of only 3lbs 8oz, backpacking as well. Designed to be used with a 25" x 78" rectangular pad. Check out the new 25" wide Insulated Air Core and Two Track pads.


  • Built in pillow pocket holds a fleece or a Big Agnes pillow
  • Nylon Rip-stop pad sleeve with WR surface treatment to repel water
  • Interior fabric loops to keep your liner in place
  • Tough nylon ripstop outer shell provides durable protection
  • Interior fabric loops for sleeping bag liners
  • Nylon stuff sack & cotton storage sack included
  • Insotect Flow construction eliminates potential cold spots, and its vertical baffles allow for a more uniform body heat distribution
  • Soft, breathable down proof nylon lining with stain resistant finish


  • No-draft collar seals around neck to keep cold air from sneaking in


  • No-draft wedge insulates the connection between the bag and pad
  • Integrated full pad sleeve. Never roll off your pad again


  • No-draft zipper tube insulates along the length of the zipper
  • Big Agnes sleeping bags leave out the bottom insulation, both to save weight and because down compressed by your body weight loses most of its insulating value
  • Rated down to 15F, this bag is best suited for cold, sheltered nights in the mountains and winter nights in milder climates
  • Thermolite Quallofil synthetic insulation
  • The 600-fill down compresses and rebounds well and features a high warmth-to-weight ratio


  • 70" YKK #8 zipper. Mate together Big Agnes bags with left and right zippers with the same size zipper


  • LEFT OR RIGHT ZIPPER? When you are in the bag, on your back, the right zip will be on your right side, left zip on your left side


  • Built-in pillow pocket keeps your pillow in place


  • Rectangular shape offers more room in foot box and shoulders
  • 25" width offers extra girth
Lie down in comfort and support when you sleep in the Summit Park 15° by Big Agnes®.
Water-resistant nylon microfiber rip-stop and 650 Fill Goose Down shell for added durability and protection.
Built in pillow pockets holds a fleece or a Big Agnes Air Core Pillow.
No-draft yoke seals around neck to keep cold air from sneaking in.
25" width offers extra girth.
70" YKK #8 zipper. Mate together any Big Agnes left and right zip bags that have a 70" #8 zipper.
Integrated pad containment system gives you the comfort that you need.
Rectangular shape offers more room in foot box and head.
Long - up to 6'6".
Pad Size - 25"x78".
Fill Type - 600 fill goose down.
Fill Weight - 1lb 8oz.
Bag Weight - 3lb 11oz.
Shoulder Girth - 80.5".
Hip Girth - 74.5".
Stuff Sack Size - L-9"x20".
Compressed Bag Size - 9x10".
The folks at Big Agnes were looking out for all you Paul Bunyan types when they created the Summit Park 15-Degree Down Sleeping Bag. The Summit Park combines oversized dimensions with a semi-rectangular mummy shape to give you more room in the shoulders and footbox.

Backcountry Edge

The Big Agnes Summit Park 15 Degree Sleeping Bag works well for the extra-large backpacker, with a chest size up to 56 inches, who can't find a bag that fits or the car camper who wants extra room and the luxurious comfort of 650 goose down.

Want it cheaper? Set your own price.
Enter the price you want to pay and we'll email or text you if we find a store that will sell it for that amount:
Price: $
Your email:
Cell number: (optional, for text message)
Learn how offers work...
22 people have already set their own price.
Average Price History: Price History
Review RatingNumber of Reviews
Fill Material:600 Fill
Fill Weight:1 lb 8 oz
Fits to Girth:56"
Fits to Length:6' 6"
Foot Girth:66 in
Hip Girth:74.5 in
Insulation:600 Fill Goose Down
Insulation Type:600+ Down Insulation
Interior lining:Soft and breathable, down proof, nylon with a stain resistant finish.
Item Weight:3 lbs 10 oz
Liner Material:Nylon
Lining:Soft, breathable down proof nylon with stain resistant finish
Max User Height:6 ft 0 in (Regular), 6 ft 6 in (Long)
Note:bag requires a 25-inch-wide rectangular sleeping pad to be fully insulated (sleeping pad available separately)
Other:Stuff sack included
Packed Size:9" x 20"
Pad sleeve:Nylon rip-stop. WR surface treatment to repel water
Recommended Use:3-Season Backpacking/ Camping
Shell:Down proof, nylon micro-fiber rip-stop. WR surface treatment to repel water
Shell Material:Nylon Microfiber Ripstop
Shoulder Girth:80.5 in
Temperature Range:11° to 20°
Temperature Rating:15 Degrees F
Type:Goose Down
Weight:3 lb 11 oz
Compare specifications to related products.

Subcategories of Sleeping Bags & Pads:

Related Categories:

Big Agnes

Big Agnes Summit Park 15 - Long Review:


I just spent 3 nights in this bag in the high Sierra mountains of Northern California and stayed warm the entire time. My only complaint is that I am 6'3" and the bag is just barely long enough. My feet got a little cold, I think from pushing on the insulation at the end of the bag, but I added a second pair of socks and I was fine the rest of the time. I don't know exactly what the temperature was, but everything in camp was frozen the next morning! There is one feature of this bag that is really neat, it's the curtain or flap that surrounds your head & face. It allows you to breathe fresh air but keeps the draft from coming into the area around your body. I wore a beanie at night and it worked great to keep my head warm. All in all I would buy it again, but maybe the one that goes to 0 degrees since I am in a cold environment.
Brian M - customer at on 09/30/2013