- Features
- SpiraFil High Loft Insulation
- Dual Zippers
- Compression Stuff Sack
- "Feely" Draw Cords - Ease Nighttime Cord Fumbling
- Blanket Construction - For Consistent Insulation
- Snagless Draft Tube - Has Heavy Oxford Cloth to Repel Biting Zipper Coils
- Two Way Zipper Sliders - For Venting and Mating of Bags. Reversible Slider Tabs for Easy Use Inside or OUtside of Bag
- Brushed Lining in Chest and Foot Box
- Two Hang Loops - On the Outside of Foot Box for Airing Out Your Bag
- Linked Styles
- Style Name:Mavericks 40 Semi Rec Long
- Style Number:20840
- Weight:2 lbs 12.45 oz / 1260 g
- Fill weight:21.3 oz / 604 g
- Price:$99.00
- Style Name:
- Specs
- Colors:
- Fire (6580)
- Overall Weight:2 lbs 3.32 oz / 1001 g
- Fill Weight:17.6 oz / 499 g
- Size on Hip:60in/152.4cm
- Size on Foot:54in/137.2cm
- Main Material:100% Polyester Embossed DWR 2.2 oz/yd
- Lining Material:100% Polyester Tafffeta DWR 2.2 oz/yd
- Insulation Material:SpiraFil 135
- Colors:

SpiraFil
Marmot's own unique synthetic insulation
SpiraFil™ is a blend of large, hollow, spiral fibers for loft, and small polyester fibers for warmth, softness, and compressibility. Thermal bonding ensures high tear strength and long-term durability. SpiraFil™ provides an exceptional combination of warmth, softness, low weight, and compactibility.
Curly's Clips - Caring for Marmot Sleeping Bags
Marmot's own Curly Cervone and Brian Rashap demonstrate how to properly care for you Marmot sleeping bag.
Size Chart
| 4'11"-5'2" | 5'2"-5'6" | 5'6"-5'10" | 5'10"-6'2" | 6'2"-6'6" | |
| 90-110 lbs | XS | S | |||
| 110-135 lbs | XS | S | M | ||
| 135-160 lbs | S-M | M | M-L | ||
| 160-195 lbs | M-L | L | L-XL | ||
| 195-230 lbs | L | L-XL | XL-XXL | ||
| 230-265 lbs | XL-XXL | XXL-XXXL |
Sizing by Body Measurements
| XS | S | M | L | XL | XXL | XXXL | |
| Parkas/Jackets/Sweaters/Tops (Unisex) | |||||||
| Chest | 33-35 | 36-38 | 39-41 | 42-45 | 46-49 | 50-53 | 54-57 |
| Neck | 13.5-14 | 14.5-15 | 15.5-16 | 16.5-17 | 17.5-18 | 18.5-19 | 19.5-20 |
| Sleeve | 30-31 | 32-33 | 34-35 | 35-36 | 36-37 | 37-38 | 37-38 |
| Pants/Bibs (Unisex) | |||||||
| Waist | 26-28 | 28-30 | 31-33 | 34-36 | 37-39 | 40-42 | 44 |
| Hip | 36-38 | 38-40 | 40-42 | 43-45 | 46-48 | 50-52 | 56 |
| Inseam (reg) | 28 | 29.5 | 31 | 32.5 | 33 | 33.5 | 34.5 |
| Inseam (short) | 26 | 27.5 | 29 | 30.5 | 31 | 31.5 | 32.5 |
| Inseam (long) | 30 | 31.5 | 33 | 34.5 | 35 | 35.5 | 36.5 |
| Gloves (Unisex) | |||||||
| Girth | 6.5-7 | 7-7.5 | 8-8.5 | 9-9.5 | 10-10.5 | ||
| Parkas/Jackets/Sweaters/Tops (Women's) | |||||||
| Size | 4-6 | 6-8 | 8-10 | 12-14 | 14-16 | ||
| Bust | 30-32 | 32-34 | 35-37 | 38-40 | 41-43 | ||
| Sleeve | 29-30 | 30-31 | 32-33 | 34-35 | 36-37 | ||
| Pants/Bibs (Women's) | |||||||
| Size | 4-6 | 6-8 | 8-10 | 12-14 | 14-16 | ||
| Waist | 22-24 | 24-26 | 27-29 | 30-32 | 33-35 | ||
| Hip | 33-35 | 35-37 | 38-40 | 41-43 | 44-46 | ||
| Inseam (reg) | 27.5 | 28.5 | 30 | 31.5 | 32 | ||
| Inseam (short) | 25.5 | 26.5 | 28 | 29.5 | 30 | ||
| Inseam (long) | 29.5 | 30.5 | 32 | 33.5 | 34 | ||
| Gloves (Women's) | |||||||
| Girth | 6-6.5 | 6.5-7 | 7.5-8 | 8.5-9 | |||
Kid's Sizing (boys & girls)
| XS | S | M | L | XL | |
| Age | 4-5 | 6-7 | 8-9 | 10-12 | 13-15 |
| Chest | 24-26 | 26-28 | 28-30 | 30-32 | 32-34 |
| Waist | 19-21 | 21-23 | 23-25 | 25-27 | 27-29 |
| Hip | 24-26 | 26-28 | 28-30 | 30-32 | 32-34 |
| Inseam | 17-18 | 19-20 | 21-22 | 23-25 | 26-28 |
| Sleeve | 22-24 | 24-25 | 25-26 | 26-28 | 28-30 |
| Height (in.) | 36-42 | 42-48 | 48-54 | 54-60 | 60-65 |
| Weight (lbs.) | 35-42 | 42-50 | 50-60 | 70-90 | 90-115 |
Garment Sizing Information
The charts above will help you select the proper size.
If you have questions, please call us.
Care Instructions
Marmot does not recommend dry cleaning for any of our products. Gore-Tex® fabric products, MemBrain® fabric products, down insulated products, and fleece are all machine washable. You should use a commercial front loading machine and follow the care instructions.









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