| Size: | Regular | Long |
| Weight: | 3 lbs 14 oz (1.77 kg) | 4 lbs 9 oz (2.07 kg) |
| Insulation: | 800-fill Goose Down | |
| Fill Weight: | 38 oz (1077 g) | 42 oz (1191 g) |
| Shell Fabric: | MemBrain® 2L 100% Nylon Ripstop 2.3 oz/yd, Waterproof/Breathable | |
| Lining: | 100% Nylon WR 1.4 oz/yd | |
| Stuff Size | 9.5" × 19" (24 × 48 cm) | 9.5" × 19" (24 × 48 cm) |
| Fits to: | 6' 0" (183 cm) | 6' 6" (198 cm) |
| Shoulder Girth: | 64" (163 cm) | 66" (168 cm) |
| Hip Girth: | 59" (152 cm) | 62" (157 cm) |
| Foot Girth: | 42" (107 cm) | 44" (112 cm) |
| Color | Alert/Terra Cotta | |
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| Col Membrain regular with a 5'11" model inside. | Col Membrain regular with full-length zipper fully zipped open. |
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| Col Membrain with bag cinched closed leaving a breathing hole for mouth and nose. | Close-up view of the velcro-free down filled collar. Collar is a full 6" baffle width |
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| Close-up view of the two-way zipper which allows for additional ventilation.. | Close-up of the zipper on the Col Membrain. Top and bottom zipper both feature down filled draft tubes and zipper guards |
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| Close-up of the 11-baffle foot box. Vertical baffles keep down around your feet. Two red nylon hang loops can be see in the photo above. | Regular sized Col Membrain in its included stuff sack next to a gallon jug filled to 3.75" with water which weighs the same as the Col Membrain in its stuff sack. Stuffed size is 9.5" × 19". |
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