{"product_id":"st258","title":"Sierra thermal jacket","description":"\u003cp\u003e\u003cstrong\u003eSierra thermal jacket\u003c\/strong\u003e – custom printed to order with your own logo, artwork or text. A practical, protective layer ideal for branded workwear and team kit. Printed in the UK with no minimum order: upload your design and we'll email a mockup to approve before we print.\u003c\/p\u003e\u003cp\u003eEngineered for high performance with reduced weight, the Sierra thermal jacket is the ideal layering piece for any outdoor adventure, providing lightweight thermal efficiency. It features Stormtech Thermal Shell™ insulation and a DWR (Durable Water Repellent) finish to keep you warm and dry while repelling wet weather. A full-length internal storm flap adds extra protection against the elements, while the quilted design ensures optimal heat retention without bulk. Built with feather-free insulation, this jacket provides sustainable warmth, with elasticised cuffs to help lock in heat, ensuring you’re ready for anything, whatever the weather.\u003c\/p\u003e\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eTo find your size, measure around the fullest part of your chest, keeping the tape level under your arms.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eTo fit chest\u003c\/th\u003e\n\u003cth\u003eTo fit chest (cm)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eXS\u003c\/td\u003e\n\u003ctd\u003e32-34\"\u003c\/td\u003e\n\u003ctd\u003e81-86cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e35-37\"\u003c\/td\u003e\n\u003ctd\u003e89-94cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e38-40\"\u003c\/td\u003e\n\u003ctd\u003e97-102cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e41-43\"\u003c\/td\u003e\n\u003ctd\u003e104-109cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e44-46\"\u003c\/td\u003e\n\u003ctd\u003e112-117cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e47-49\"\u003c\/td\u003e\n\u003ctd\u003e119-124cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e50-52\"\u003c\/td\u003e\n\u003ctd\u003e127-132cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4XL\u003c\/td\u003e\n\u003ctd\u003e53-55\"\u003c\/td\u003e\n\u003ctd\u003e135-140cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5XL\u003c\/td\u003e\n\u003ctd\u003e56-58\"\u003c\/td\u003e\n\u003ctd\u003e142-147cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cem\u003eThis is a general size guide. Actual fit varies by style (slim, regular or oversized) and by brand, so please use it as an approximate starting point.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eHow to customise your jacket\u003c\/h3\u003e\u003cp\u003ePlease choose your print location and print size from the options below and upload your designs into the upload field. You will receive an email with a mockup of your order before printing.\u003c\/p\u003e\u003cp\u003eNeed help? Contact us at \u003ca href=\"mailto:printing@theinnersanctumgroup.co.uk\"\u003eprinting@theinnersanctumgroup.co.uk\u003c\/a\u003e.\u003c\/p\u003e","brand":"The Inner Sanctum Group","offers":[{"title":"Black \/ S","offer_id":53439304401243,"sku":"ST258BLACS","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Black \/ M","offer_id":53439304434011,"sku":"ST258BLACM","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Black \/ L","offer_id":53439304466779,"sku":"ST258BLACL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Black \/ XL","offer_id":53439304499547,"sku":"ST258BLACXL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 2XL","offer_id":53439304532315,"sku":"ST258BLAC2XL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 3XL","offer_id":53439304565083,"sku":"ST258BLAC3XL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 4XL","offer_id":53439304597851,"sku":"ST258BLAC4XL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 5XL","offer_id":53439304630619,"sku":"ST258BLAC5XL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Granite \/ S","offer_id":53439304663387,"sku":"ST258GRANS","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Granite \/ M","offer_id":53439304696155,"sku":"ST258GRANM","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Granite \/ L","offer_id":53439304728923,"sku":"ST258GRANL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Granite \/ XL","offer_id":53439304761691,"sku":"ST258GRANXL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Granite \/ 2XL","offer_id":53439304794459,"sku":"ST258GRAN2XL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Granite \/ 3XL","offer_id":53439304827227,"sku":"ST258GRAN3XL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Granite \/ 4XL","offer_id":53439304859995,"sku":"ST258GRAN4XL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Granite \/ 5XL","offer_id":53439304892763,"sku":"ST258GRAN5XL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Navy \/ S","offer_id":53439304925531,"sku":"ST258NAVYS","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Navy \/ M","offer_id":53439304958299,"sku":"ST258NAVYM","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Navy \/ L","offer_id":53439304991067,"sku":"ST258NAVYL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Navy \/ XL","offer_id":53439305023835,"sku":"ST258NAVYXL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Navy \/ 2XL","offer_id":53439305056603,"sku":"ST258NAVY2XL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Navy \/ 3XL","offer_id":53439305089371,"sku":"ST258NAVY3XL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Navy \/ 4XL","offer_id":53439305122139,"sku":"ST258NAVY4XL","price":39.5,"currency_code":"GBP","in_stock":true},{"title":"Navy \/ 5XL","offer_id":53439305154907,"sku":"ST258NAVY5XL","price":39.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0862\/1811\/3371\/files\/ST258_LS00_2026.jpg?v=1782372466","url":"https:\/\/theinnersanctumgroup.co.uk\/products\/st258","provider":"The Inner Sanctum Group","version":"1.0","type":"link"}