{"@context":"https://schema.org","@type":"Product","name":"Sierra Designs Nitro 35 800 Dridown Sleeping Bag - Long","description":"Simple construction and a classic mummy bag shape are the hallmarks of one of our best-selling sleeping bags for backpackers who put a premium on low weight, incredible comfort and straightforward tech. The Nitro sleeping bag is designed with durable nylon ripstop and insulated with 800-fill, hydrophobic DriDown™ to keep you toasty warm, even on damp nights. A draft collar seals in the heat when moving around, and sidewall baffles prevent the down from shifting and causing cold spots, but our patented self-sealing foot vent provides relief to hot sleepers without the need to kick off the covers. Top it off with an anti-snag zipper to eliminate sleepy struggles and take greater comfort with this intuitive mummy bag. PFC-Free 800FP Dridown and 15d nylon fabrics / ultralight weight Patented Self Sealing foot vent / fast and easy ventilation Draft-dodger collar / helps prevent drafts 5\" baffle spacing and side wall baffles / helps to keep down from shifting keeping you warmer Anti-snag zipper tracks / makes getting in and out easy Insulation: 800FP PFC-Free Dridown Shell Fabric: 15d nylon risptop Liner Fabric: 15d nylon risptop REGULAR EN Limit Temp Rating: 27F / -3C EN Comfort Temp Rating: 37F / 3C Fill Weight: 9 oz / 255 g Minimum Weight: 1 lb 6 oz / 0.61 kg Fits Up To: 6' 0\" / 183 cm Length: 78in / 198 cm Shoulder Circumference: 62\" / 157 cm Hip Circumference: 56\" / 142 cm Footbox Circumference: 40\" / 102 cm Mesh Stoarge Bag Size (LxW): 20 x 12\" / 51 x 31 cm Stuff Sack Size (L x W): 13 x 7\" / 33 x 18cm SKU: 70604218 LONG EN Limit Temp Rating: 27F / -3C EN Comfort Temp Rating: 37F / 3C Fill Weight: 10.1 oz / 286 g Minimum Weight: 1 lb 8 oz / 0.67 kg Fits Up To: 6' 6\" / 198 cm Length: 84in / 213 cm Shoulder Circumference: 64\" / 163 cm Hip Circumference: 58\" / 147 cm Footbox Circumference: 42\" / 107 cm Mesh Stoarge Bag Size (LxW): 20 x 12\" / 51 x 31 cm Stuff Sack Size (L x W): 13 x 7\" / 33 x 18cm SKU: 70604218","descriptionSections":[{"heading":"Product overview","text":"Simple construction and a classic mummy bag shape are the hallmarks of one of our best-selling sleeping bags for backpackers who put a premium on low weight, incredible comfort and straightforward tech. The Nitro sleeping bag is designed with durable nylon ripstop and insulated with 800-fill, hydrophobic DriDown™ to keep you toasty warm, even on damp nights. A draft collar seals in the heat when moving around, and sidewall baffles prevent the down from shifting and causing cold spots, but our patented self-sealing foot vent provides relief to hot sleepers without the need to kick off the covers. Top it off with an anti-snag zipper to eliminate sleepy struggles and take greater comfort with this intuitive mummy bag. PFC-Free 800FP Dridown and 15d nylon fabrics / ultralight weight Patented Self Sealing foot vent / fast and easy ventilation Draft-dodger collar / helps prevent drafts 5\" baffle spacing and side wall baffles / helps to keep down from shifting keeping you warmer Anti-snag zipper tracks / makes getting in and out easy Insulation: 800FP PFC-Free Dridown Shell Fabric: 15d nylon risptop Liner Fabric: 15d nylon risptop REGULAR EN Limit Temp Rating: 27F / -3C EN Comfort Temp Rating: 37F / 3C Fill Weight: 9 oz / 255 g Minimum Weight: 1 lb 6 oz / 0.61 kg Fits Up To: 6' 0\" / 183 cm Length: 78in / 198 cm Shoulder Circumference: 62\" / 157 cm Hip Circumference: 56\" / 142 cm Footbox Circumference: 40\" / 102 cm Mesh Stoarge Bag Size (LxW): 20 x 12\" / 51 x 31 cm Stuff Sack Size (L x W): 13 x 7\" / 33 x 18cm SKU: 70604218 LONG EN Limit Temp Rating: 27F / -3C EN Comfort Temp Rating: 37F / 3C Fill Weight: 10.1 oz / 286 g Minimum Weight: 1 lb 8 oz / 0.67 kg Fits Up To: 6' 6\" / 198 cm Length: 84in / 213 cm Shoulder Circumference: 64\" / 163 cm Hip Circumference: 58\" / 147 cm Footbox Circumference: 42\" / 107 cm Mesh Stoarge Bag Size (LxW): 20 x 12\" / 51 x 31 cm Stuff Sack Size (L x W): 13 x 7\" / 33 x 18cm SKU: 70604218","blocks":[{"kind":"paragraph","text":"Simple construction and a classic mummy bag shape are the hallmarks of one of our best-selling sleeping bags for backpackers who put a premium on low weight, incredible comfort and straightforward tech. The Nitro sleeping bag is designed with durable nylon ripstop and insulated with 800-fill, hydrophobic DriDown™ to keep you toasty warm, even on damp nights. A draft collar seals in the heat when moving around, and sidewall baffles prevent the down from shifting and causing cold spots, but our patented self-sealing foot vent provides relief to hot sleepers without the need to kick off the covers. Top it off with an anti-snag zipper to eliminate sleepy struggles and take greater comfort with this intuitive mummy bag."},{"kind":"paragraph","text":"PFC-Free 800FP Dridown and 15d nylon fabrics / ultralight weight Patented Self Sealing foot vent / fast and easy ventilation Draft-dodger collar / helps prevent drafts 5\" baffle spacing and side wall baffles / helps to keep down from shifting keeping you warmer Anti-snag zipper tracks / makes getting in and out easy Insulation: 800FP PFC-Free Dridown Shell Fabric: 15d nylon risptop Liner Fabric: 15d nylon risptop REGULAR EN Limit Temp Rating: 27F / -3C EN Comfort Temp Rating: 37F / 3C Fill Weight: 9 oz / 255 g Minimum Weight: 1 lb 6 oz / 0.61 kg Fits Up To: 6' 0\" / 183 cm Length: 78in / 198 cm Shoulder Circumference: 62\" / 157 cm Hip Circumference: 56\" / 142 cm Footbox Circumference: 40\" / 102 cm Mesh Stoarge Bag Size (LxW): 20 x 12\" / 51 x 31 cm Stuff Sack Size (L x W): 13 x 7\" / 33 x 18cm SKU: 70604218"},{"kind":"paragraph","text":"LONG EN Limit Temp Rating: 27F / -3C EN Comfort Temp Rating: 37F / 3C Fill Weight: 10.1 oz / 286 g Minimum Weight: 1 lb 8 oz / 0.67 kg Fits Up To: 6' 6\" / 198 cm Length: 84in / 213 cm Shoulder Circumference: 64\" / 163 cm Hip Circumference: 58\" / 147 cm Footbox Circumference: 42\" / 107 cm Mesh Stoarge Bag Size (LxW): 20 x 12\" / 51 x 31 cm Stuff Sack Size (L x W): 13 x 7\" / 33 x 18cm SKU: 70604218"}],"sourceId":"m1"}],"storeName":"Alpine Equipment Company","seoDescription":null,"url":"https://alpine-equipment-company.com/products/sierra-designs-nitro-35-800-dridown-sleeping-bag-long","brand":{"@type":"Brand","name":"Sierra Designs"},"category":"Sleeping Bags","tags":["Shopify Collective","Sleeping","Twist Distribution"],"image":["https://cdn.shopify.com/s/files/1/0957/2217/6889/files/wjk5krozgniqgx4vdm0k_7eb40366-8f9f-4225-9c97-87ee0ecb4740.jpg?v=1783689455","https://cdn.shopify.com/s/files/1/0957/2217/6889/files/70604218L_1.jpg?v=1783689457","https://cdn.shopify.com/s/files/1/0957/2217/6889/files/70604218L_2.jpg?v=1783689455","https://cdn.shopify.com/s/files/1/0957/2217/6889/files/70604218L_3.jpg?v=1783689455","https://cdn.shopify.com/s/files/1/0957/2217/6889/files/70604218L_4.jpg?v=1783689457","https://cdn.shopify.com/s/files/1/0957/2217/6889/files/70604218L_5.jpg?v=1783689457"],"imageMetadata":[{"url":"https://cdn.shopify.com/s/files/1/0957/2217/6889/files/wjk5krozgniqgx4vdm0k_7eb40366-8f9f-4225-9c97-87ee0ecb4740.jpg?v=1783689455","altText":"Long sleeping bag with blue hood, yellow stripe, and dark body insulation"},{"url":"https://cdn.shopify.com/s/files/1/0957/2217/6889/files/70604218L_1.jpg?v=1783689457","altText":"Long sleeping bag side view with blue top, yellow stripe, and light inner hood"},{"url":"https://cdn.shopify.com/s/files/1/0957/2217/6889/files/70604218L_2.jpg?v=1783689455","altText":"Sleeping bag with blue hood, yellow diagonal stripe, and black bottom, shown in use"},{"url":"https://cdn.shopify.com/s/files/1/0957/2217/6889/files/70604218L_3.jpg?v=1783689455","altText":"Sleeping bag in use: blue and yellow top with black lower section, hood open"},{"url":"https://cdn.shopify.com/s/files/1/0957/2217/6889/files/70604218L_4.jpg?v=1783689457","altText":"Long sleeping bag laid flat: dark gray body with yellow panel and blue hood"},{"url":"https://cdn.shopify.com/s/files/1/0957/2217/6889/files/70604218L_5.jpg?v=1783689457","altText":"Sierra Designs sleeping bag end view with gray fabric and yellow zipper accent"}],"offers":[{"@type":"Offer","name":"Default Title","url":"https://alpine-equipment-company.com/apps/arenza/products/sierra-designs-nitro-35-800-dridown-sleeping-bag-long?view=shop&variant=63929162563961","price":"275.00","priceCurrency":"GBP","sku":"70604218L","availableForPurchase":true,"oneTimePurchase":true,"additionalProperty":[{"@type":"PropertyValue","name":"Available to purchase","value":true},{"@type":"PropertyValue","name":"Option","value":"Default Title"}],"potentialAction":{"@type":"BuyAction","target":"https://alpine-equipment-company.com/apps/arenza/products/sierra-designs-nitro-35-800-dridown-sleeping-bag-long?view=buy&variant=63929162563961"}}],"variantCoverage":{"exposed":1,"total":1,"complete":true},"source":"live_public_shopify_product","illustrative":false,"updatedAt":"2026-10-26T15:56:10Z","checkedAt":"2026-10-28T18:07:56.430Z","buyingConditions":"Currency verified from the anonymous storefront. 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