{"@context":"https://schema.org","@type":"Product","name":"Robens Spire II -4°C Sleeping Bag","description":"The Spire -4 Sleeping Bag is designed for cold-weather conditions, offering superior warmth with its body contour profile and OneThermo insulation. A 3D hood and redefined neck baffle help prevent drafts and heat loss. The shark fin foot box and full-length insulated zip baffle enhance insulation, while the brushed polyester lining ensures moisture control. Key features include an anti-snag YKK zipper, differentiated hood draw cords, inner pocket, compression stuff sack, and hanger loops. Features: • Body contour profile for optimum warmth to weight ratio • 3D hood profile • Redefined neck baffle position and profile minimise draughts and heat loss • Hood draw cord differentiated by thickness and structure for easy adjustment by touch • Shark fin foot box with extra insulation • Full-length insulated zip baffle • Anti-snag zip guard • Inside pocket for valuables • Brushed lining material with high moisture transport for comfort • Compression stuff sack • Hanger loops • PFAS-free • Tested according to: EN13537 Weight: 1599g Temp Comfort: 2 Temp Limit: -4 Material: Shell: 100% Polyester Lining: 100% Polyester Filling: 100% Polyester Carrybag: Sides: 100% Nylon, Bottom: 100% Polyester Shell: 50D 300T polyester Taffeta, 100% polyester Filling: OneThermo Lining: 230T microfibre polyester Zipper: YKK Auto lock - two-way open Pack size: 33 x 23 cm Brand: Robens","descriptionSections":[{"heading":"Product overview","text":"The Spire -4 Sleeping Bag is designed for cold-weather conditions, offering superior warmth with its body contour profile and OneThermo insulation. A 3D hood and redefined neck baffle help prevent drafts and heat loss. The shark fin foot box and full-length insulated zip baffle enhance insulation, while the brushed polyester lining ensures moisture control. Key features include an anti-snag YKK zipper, differentiated hood draw cords, inner pocket, compression stuff sack, and hanger loops. Features: • Body contour profile for optimum warmth to weight ratio • 3D hood profile • Redefined neck baffle position and profile minimise draughts and heat loss • Hood draw cord differentiated by thickness and structure for easy adjustment by touch • Shark fin foot box with extra insulation • Full-length insulated zip baffle • Anti-snag zip guard • Inside pocket for valuables • Brushed lining material with high moisture transport for comfort • Compression stuff sack • Hanger loops • PFAS-free • Tested according to: EN13537 Weight: 1599g Temp Comfort: 2 Temp Limit: -4 Material: Shell: 100% Polyester Lining: 100% Polyester Filling: 100% Polyester Carrybag: Sides: 100% Nylon, Bottom: 100% Polyester Shell: 50D 300T polyester Taffeta, 100% polyester Filling: OneThermo Lining: 230T microfibre polyester Zipper: YKK Auto lock - two-way open Pack size: 33 x 23 cm Brand: Robens","blocks":[{"kind":"paragraph","text":"The Spire -4 Sleeping Bag is designed for cold-weather conditions, offering superior warmth with its body contour profile and OneThermo insulation. A 3D hood and redefined neck baffle help prevent drafts and heat loss. The shark fin foot box and full-length insulated zip baffle enhance insulation, while the brushed polyester lining ensures moisture control. Key features include an anti-snag YKK zipper, differentiated hood draw cords, inner pocket, compression stuff sack, and hanger loops."},{"kind":"paragraph","text":"Features: • Body contour profile for optimum warmth to weight ratio • 3D hood profile • Redefined neck baffle position and profile minimise draughts and heat loss • Hood draw cord differentiated by thickness and structure for easy adjustment by touch • Shark fin foot box with extra insulation • Full-length insulated zip baffle • Anti-snag zip guard • Inside pocket for valuables • Brushed lining material with high moisture transport for comfort • Compression stuff sack • Hanger loops • PFAS-free • Tested according to: EN13537 Weight: 1599g Temp Comfort: 2 Temp Limit: -4 Material: Shell: 100% Polyester Lining: 100% Polyester Filling: 100% Polyester Carrybag: Sides: 100% Nylon, Bottom: 100% Polyester Shell: 50D 300T polyester Taffeta, 100% polyester Filling: OneThermo Lining: 230T microfibre polyester Zipper: YKK Auto lock - two-way open Pack size: 33 x 23 cm Brand: Robens"}],"sourceId":"m1"}],"storeName":"Alpine Equipment Company","seoDescription":null,"url":"https://alpine-equipment-company.com/products/robens-spire-ii-4-c-sleeping-bag","brand":{"@type":"Brand","name":"Roben"},"tags":["Shopify Collective","Sleeping","Wood To Water Outdoors"],"image":["https://cdn.shopify.com/s/files/1/0957/2217/6889/files/RobensSpireII-4_C_1.webp?v=1783606188","https://cdn.shopify.com/s/files/1/0957/2217/6889/files/RobensSpireII-4_C_2.webp?v=1783606188","https://cdn.shopify.com/s/files/1/0957/2217/6889/files/RobensSpireII-4_C_6.webp?v=1783606188","https://cdn.shopify.com/s/files/1/0957/2217/6889/files/RobensSpireII-4_C_4.webp?v=1783606188","https://cdn.shopify.com/s/files/1/0957/2217/6889/files/RobensSpireII-4_C_3.webp?v=1783606188","https://cdn.shopify.com/s/files/1/0957/2217/6889/files/RobensSpireII-4_C_5.webp?v=1783606188"],"imageMetadata":[{"url":"https://cdn.shopify.com/s/files/1/0957/2217/6889/files/RobensSpireII-4_C_1.webp?v=1783606188","altText":"Teal and dark gray mummy sleeping bag with hood, quilted insulation."},{"url":"https://cdn.shopify.com/s/files/1/0957/2217/6889/files/RobensSpireII-4_C_2.webp?v=1783606188","altText":"Teal mummy sleeping bag on person, hooded quilted insulation with zipper."},{"url":"https://cdn.shopify.com/s/files/1/0957/2217/6889/files/RobensSpireII-4_C_6.webp?v=1783606188","altText":"Teal mummy sleeping bag with gray foot section and open red interior."},{"url":"https://cdn.shopify.com/s/files/1/0957/2217/6889/files/RobensSpireII-4_C_4.webp?v=1783606188","altText":"Teal sleeping bag with gray hood and foot panels, quilted mummy cut."},{"url":"https://cdn.shopify.com/s/files/1/0957/2217/6889/files/RobensSpireII-4_C_3.webp?v=1783606188","altText":"Teal mummy sleeping bag wrapped around camper with red interior accents."},{"url":"https://cdn.shopify.com/s/files/1/0957/2217/6889/files/RobensSpireII-4_C_5.webp?v=1783606188","altText":"Gray sleeping bag hood with red lining, visible ROBENS logo patch."}],"offers":[{"@type":"Offer","name":"Default Title","url":"https://alpine-equipment-company.com/apps/arenza/products/robens-spire-ii-4-c-sleeping-bag?view=shop&variant=63921540202873","price":"65.00","priceCurrency":"GBP","sku":"250299","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/robens-spire-ii-4-c-sleeping-bag?view=buy&variant=63921540202873"}}],"variantCoverage":{"exposed":1,"total":1,"complete":true},"source":"live_public_shopify_product","illustrative":false,"updatedAt":"2026-10-26T15:56:06Z","checkedAt":"2026-10-28T16:57:22.876Z","buyingConditions":"Currency verified from the anonymous storefront. 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