Mavericks 30 Semi Rec

$99.00 – $109.00  | #20860

Packs like a jacket, sleeps like a dream! For stress-free outdoor Z’s during spring and summer outings, you can’t beat the familiar comfort of this taffeta-lined semi-rectangular bag—rated to 30°F and resistant to moisture, punctures, and rips.

Size Chart


Add to cart
Mavericks 30 Semi Rec


Feature List
Brushed Lining in Chest and Foot Box, Compression Stuff Sack, Dual Zippers, 'Feely' Draw Cords, Shingle Insulation Construction, Snagless Draft Tube, SpiraFil High Loft Insulation, Two Hang Loops, Two Way Zipper Sliders
Main Materials
100% Polyester Embossed DWR 2.2 oz/yd
3lbs 3.97oz (1473g)
Fill Weight
33.3oz (944g)
Bag Temperature F
30° F
Bag Temperature C
-1° C
Bag Loft
Bag Zipper position
Lining Material
100% Polyester Tafffeta DWR 2.2 oz/yd
Insulation Material
SpiraFil™ 120



SprialFil is Marmot's own unique synthetic insulation used in our value-priced line of sleeping bags.

What is it?

SpiraFil is a unique blend of large, spiral hollow fibers for loft, and small polyester fibers for warmth, softness and compressability.

What are the benefits of this technology?

SpiraFil provides an exceptional combination of warmth, softness, low weight, and compactibility. Thermal bonding ensures high tear strength and long-term durability.

Wash & Care

Why do we encourage proper care of our clothing and gear?

Because you have invested in (or are thinking about investing in) one of the most technically advanced pieces of apparel or equipment you'll ever own and we want to make sure you have the information you need to protect and care for your purchase. Proper care assures you will optimize the performance of your Marmot product and maximize its service-life.

Sleeping Bag Care

  • Hand wash warm, 105 degrees Fahrenheit or 40 degrees Celsius or machine wash Warm, Gentle cycle in a front load washer only.
  • If you need to use a detergent, only use powdered form
  • Rinse thoroughly
  • Do not wring your sleeping bag
  • Hang dry or tumble dry on low heat. If tumble drying a down bag, toss a couple of clean tennis balls in the dryer to help re-loft the bag
  • After your bag is dry, store in a loose storage container. Cotton or mesh stuff sacks or extra-large pillow cases work well
  • Do not store in a space where temperatures could exceed 125 degree Fahrenheit
  • Do not bleach
  • Do not iron
  • Do not dry clean