Stay warm and support ocean conservation with our Hammerhead Shark Half Zip Sweatshirt. Featuring an embroidered hammerhead design and Shark Trust logo, this premium organic cotton layer combines comfort with purpose. The classic half-zip style makes it perfect for layering on cooler days, while sustainable production in a renewable energy-powered UK factory keeps your wardrobe planet-friendly. <\/p>
Designed to be remade when worn out - keeping materials in use and out of waste. Every purchase supports Shark Trust\u2019s mission to protect sharks, skates, and rays, helping safeguard the future of our oceans.<\/p>","brand":null,"metaTitle":"Hammerhead Shark Half Zip Sweatshirt | Shark Trust","metaDescription":"Support shark conservation with our Hammerhead Shark Sweatshirt. This premium half zip jumper is ethically made and helps fund our vital work. Shop now.","metaImage":null,"noIndex":false,"approvalStatus":"approved","ecoIcons":[],"isBundle":false,"type":"Printed Sweater","specifications":"Certified organic cotton fleece unisex quarter zip sweatshirt with high collar & ribbed cuffs and hem. YKK zip. 300 gsm. Wash cool, hang dry. GM-free. Not tested on animals. Does not contain animal-derived products. Material made in a renewable energy-powered factory, audited for a wide range of social and sustainability criteria. Made to be remade - scan the QR code in the care label to send it back when worn out.","sizeChartId":52,"sizeCount":5,"urlName":"shark-trust-logo-half-zip-sweatshirt","customiseIt":false,"enableAddToCart":true,"collection":{"title":"Shark Clothing & Gifts","urlName":"all-products"},"reviews":{"raw":[{"id":62517,"reviewableId":7149491,"reviewableName":"Shark Trust Hammerhead Half Zip Sweatshirt","images":[],"author":"Jackie Day","customer":"Jackie Day","date":"Aug 15, 2025","rating":5,"text":"Nice fit and very comfortable","sentiment":0.9,"reply":{"id":33859,"text":"Thanks so much Jackie, we're glad the Shark Trust Hammerhead Half Zip Sweatshirt fits well and feels comfy.","author":"Shark Trust"}},{"id":72667,"reviewableId":7149491,"reviewableName":"Shark Trust Hammerhead Half Zip Sweatshirt","images":[],"author":"Olivia Barnett","customer":"Olivia Barnett","date":"Apr 3, 2026","rating":5,"text":"I was on the fence about buying this one, but I received a few weeks ago and I haven\u2019t taken it off since. It is so comfy and cozy but looks smart for going out in! This is the perfect zip top I think I\u2019ll probably be buying more\u2026 also great that you get to help shark when you shop here too!","sentiment":0.7,"reply":{"id":56113,"text":"Thank you Olivia, it means a lot to hear how much you\u2019re enjoying your Shark Trust Hammerhead Half Zip Sweatshirt and its purpose.","author":"Shark Trust"}},{"id":81446,"reviewableId":7149491,"reviewableName":"Shark Trust Hammerhead Half Zip Sweatshirt","images":[],"author":"Hmc","customer":"Hmc","date":"Oct 1, 2026","rating":5,"text":"Always happy with everything I get from sharktrust, I get my dad a tee or a sweatshirt every birthday and Christmas and have for a good while now and have never been disappointed, he wears them a lot, they wash well and stay the same , happy customer!","sentiment":0.8,"reply":{"id":63660,"text":"We are delighted your dad enjoys his Shark Trust Hammerhead Half Zip Sweatshirt and that it remains a durable favourite for your family.","author":"Shark Trust"}},{"id":82131,"reviewableId":7149491,"reviewableName":"Shark Trust Hammerhead Half Zip Sweatshirt","images":[],"author":"Tina","customer":"Tina","date":"Oct 19, 2026","rating":5,"text":"Lovely quality. As seen in picture.","sentiment":0.4,"reply":{"id":64278,"text":"Many thanks Tina, we are glad you find the quality of your Shark Trust Hammerhead Half Zip Sweatshirt to be just as pictured.","author":"Shark Trust"}}],"rating":5,"count":4,"summary":null},"lifestyleImages":[{"full":"https:\/\/images.podos.io\/hiobyomned3dfhk5m3fhdw1ypdjp32cydhmgmrycrzlxpi2x.jpeg","1080":"https:\/\/images.podos.io\/hiobyomned3dfhk5m3fhdw1ypdjp32cydhmgmrycrzlxpi2x.jpeg.jpg?w=1080&h=auto","640":"https:\/\/images.podos.io\/hiobyomned3dfhk5m3fhdw1ypdjp32cydhmgmrycrzlxpi2x.jpeg.jpg?w=640&h=auto","480":"https:\/\/images.podos.io\/hiobyomned3dfhk5m3fhdw1ypdjp32cydhmgmrycrzlxpi2x.jpeg.jpg?w=480&h=auto","120":"https:\/\/images.podos.io\/hiobyomned3dfhk5m3fhdw1ypdjp32cydhmgmrycrzlxpi2x.jpeg.jpg?w=auto&h=120","altText":"Man wearing a dark green hammerhead shark half zip sweatshirt with Shark Trust logo on the chest","color":"Evergreen"},{"full":"https:\/\/images.podos.io\/mkhzq5i1th1txphmlza3j5loydhh3rvdjkjeouebg7xqncd6.jpeg","1080":"https:\/\/images.podos.io\/mkhzq5i1th1txphmlza3j5loydhh3rvdjkjeouebg7xqncd6.jpeg.jpg?w=1080&h=auto","640":"https:\/\/images.podos.io\/mkhzq5i1th1txphmlza3j5loydhh3rvdjkjeouebg7xqncd6.jpeg.jpg?w=640&h=auto","480":"https:\/\/images.podos.io\/mkhzq5i1th1txphmlza3j5loydhh3rvdjkjeouebg7xqncd6.jpeg.jpg?w=480&h=auto","120":"https:\/\/images.podos.io\/mkhzq5i1th1txphmlza3j5loydhh3rvdjkjeouebg7xqncd6.jpeg.jpg?w=auto&h=120","altText":"Person wearing a black hammerhead shark half zip sweatshirt with a green hammerhead shark logo and the words 'Shark Trust' on the left chest","color":"Navy"}],"ugcImages":[],"videos":[],"designCrossSellData":{"enabled":false,"designFile":null},"crossSellProducts":[],"options":{"Evergreen":{"colour":"Evergreen","groupColour":"Green","sizes":{"S":{"price":45,"salePrice":0},"M":{"price":45,"salePrice":0},"L":{"price":45,"salePrice":0},"XL":{"price":45,"salePrice":0},"XXL":{"price":45,"salePrice":0}},"flatImage":{"full":"https:\/\/images.podos.io\/126e6b32ec564bc5720f8537fde32a0266567180caa95424.png","1080":"https:\/\/images.podos.io\/126e6b32ec564bc5720f8537fde32a0266567180caa95424.png.png?w=1080&h=auto","640":"https:\/\/images.podos.io\/126e6b32ec564bc5720f8537fde32a0266567180caa95424.png.png?w=640&h=auto","480":"https:\/\/images.podos.io\/126e6b32ec564bc5720f8537fde32a0266567180caa95424.png.png?w=480&h=auto","120":"https:\/\/images.podos.io\/126e6b32ec564bc5720f8537fde32a0266567180caa95424.png.png?w=auto&h=120"},"backFlatImage":null,"additionalImages":[],"price":45,"thumbnail":{"type":"color","value":"#23312d"},"backImage":false},"Navy":{"colour":"Navy","groupColour":"Blue","sizes":{"S":{"price":45,"salePrice":0},"M":{"price":45,"salePrice":0},"L":{"price":45,"salePrice":0},"XL":{"price":45,"salePrice":0},"XXL":{"price":45,"salePrice":0}},"flatImage":{"full":"https:\/\/images.podos.io\/5944313d86800a86fce65fcac8defe1da5619d7bc56cc130.png","1080":"https:\/\/images.podos.io\/5944313d86800a86fce65fcac8defe1da5619d7bc56cc130.png.png?w=1080&h=auto","640":"https:\/\/images.podos.io\/5944313d86800a86fce65fcac8defe1da5619d7bc56cc130.png.png?w=640&h=auto","480":"https:\/\/images.podos.io\/5944313d86800a86fce65fcac8defe1da5619d7bc56cc130.png.png?w=480&h=auto","120":"https:\/\/images.podos.io\/5944313d86800a86fce65fcac8defe1da5619d7bc56cc130.png.png?w=auto&h=120"},"backFlatImage":null,"additionalImages":[],"price":45,"thumbnail":{"type":"color","value":"#0d1b30"},"backImage":false},"Black":{"colour":"Black","groupColour":"Black","sizes":{"S":{"price":45,"salePrice":0},"M":{"price":45,"salePrice":0},"L":{"price":45,"salePrice":0},"XL":{"price":45,"salePrice":0},"XXL":{"price":45,"salePrice":0}},"flatImage":{"full":"https:\/\/images.podos.io\/abc2b5491289fac1d434943212a30ae997c798010989fd79.png","1080":"https:\/\/images.podos.io\/abc2b5491289fac1d434943212a30ae997c798010989fd79.png.png?w=1080&h=auto","640":"https:\/\/images.podos.io\/abc2b5491289fac1d434943212a30ae997c798010989fd79.png.png?w=640&h=auto","480":"https:\/\/images.podos.io\/abc2b5491289fac1d434943212a30ae997c798010989fd79.png.png?w=480&h=auto","120":"https:\/\/images.podos.io\/abc2b5491289fac1d434943212a30ae997c798010989fd79.png.png?w=auto&h=120"},"backFlatImage":null,"additionalImages":[],"price":45,"thumbnail":{"type":"color","value":"#000000"},"backImage":false}},"bundleItems":[],"price":45,"totalBundlePrice":0,"salePrice":0,"labels":[],"tags":["logo","eco","nature","animal","wildlife","ocean","marine","graphic","sea","shark","fish","sharks","hammerhead","conservation","green","sustainable","ethical","blue","charity","trust"],"baseSku":"RNU3","personalizationTemplate":null,"showSaleBadge":true}