Big Agnes System bags with FireLine ECO synthetic insulation offer a roomy, rectangle-shaped sleeping space with an integrated Flex Pad Sleeve on the bottom. With technical fabrics and construction, 100% recycled, super-warm insulation, and tons of comfort features, these comfortable sleeping bags are designed to be lightweight enough for backpacking but cozy enough you’ll want them in the campground too. The streamlined silhouette and Flow construction increase the thermal efficiency keeping you warm from head to toe. The Flex Pad Sleeve unites easily with your pad, and as you change positions over the course of the night, will keep you from rolling off your pad.
Lost Dog 15 (FireLine Eco)
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In Stock
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Why So Affordable?We’re running a 2-Day Special Sale with the lowest prices of the season. Hurry — this offer ends soon and prices will return to normal once the event ends.
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100% Brand NewAll items are factory-sealed, never used, and guaranteed authentic.
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100% Secure CheckoutYou can pay securely using PayPal or any major credit/debit card. Every transaction is SSL-encrypted. You’re fully protected — if your item doesn’t arrive or isn’t as described, you get a full refund.
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Free U.S. ShippingEvery order ships free across the United States, with delivery in just 3–5 days.
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Free 30-Day ReturnsNot satisfied? Return it within 30 days for a full refund — no restocking fees, no hassle.










