Shirts
![](http://www.thalassas.com/cdn/shop/products/SharkTeethTshirtShopifyCollectionImage-min_{width}x.jpg?v=1682169571)
![](http://www.thalassas.com/cdn/shop/products/unisex-staple-t-shirt-heather-midnight-navy-front-64407cb58dbb5_1024x.jpg?v=1682169571)
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Shark Jaw T-shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![](http://www.thalassas.com/cdn/shop/files/ThalassasWhaleSharkSecretShirtAsphaltback_{width}x.jpg?v=1714706924)
![](http://www.thalassas.com/cdn/shop/files/ThalassasWhaleSharkSecretShirtAsphaltFront_1024x.jpg?v=1714706924)
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Whale Shark Secret T-shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![](http://www.thalassas.com/cdn/shop/files/ThalassasTigerSharkSecretDarkHeatherFront_{width}x.jpg?v=1714707917)
![](http://www.thalassas.com/cdn/shop/files/ThalassasTigerSharkSecretBlackHeatherFront_1024x.jpg?v=1714707917)
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Tiger Shark Secret T-shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![navy hoodie with light blue drawing of an octopus with Thalassas text below](http://www.thalassas.com/cdn/shop/files/unisex-heavy-blend-hoodie-navy-front-65590952ceaf5_{width}x.png?v=1700334110)
![navy hoodie with light blue drawing of an octopus with Thalassas text below](http://www.thalassas.com/cdn/shop/files/unisex-heavy-blend-hoodie-navy-front-65590952cf937_1024x.png?v=1700334110)
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Thalassas Octopus Hoodie
- Regular Price
- from $44.99
- Sale Price
- from $44.99
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![](http://www.thalassas.com/cdn/shop/products/SharkSilhouetteTshirtProductImage-min_{width}x.jpg?v=1682169180)
![](http://www.thalassas.com/cdn/shop/products/SharkGreatWhiteMakoTigerThresherHammerheadSilhouetteBornoftheSeaHeatherMidnightNavyShirtback_1024x.jpg?v=1682169180)
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Shark Silhouette T-Shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![](http://www.thalassas.com/cdn/shop/products/BillfishSilhouettesProductImage-min_{width}x.jpg?v=1682171493)
![](http://www.thalassas.com/cdn/shop/products/BIllfishSilhouetteBornoftheSeaBlackHeatherShirtFront_1024x.jpg?v=1682171493)
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Billfish Silhouette T-Shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![](http://www.thalassas.com/cdn/shop/products/MigratoryFishSilhouetteTshirtProductImage-min_{width}x.jpg?v=1682170895)
![](http://www.thalassas.com/cdn/shop/products/UnisexSatlwaterfishingtunamarlinmahiwahoosilhouetteshirtAsphaltback_1024x.jpg?v=1682170895)
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Saltwater Migratory Fish Silhouette T-Shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![](http://www.thalassas.com/cdn/shop/products/ClownfishReefShirt-min_{width}x.jpg?v=1681848922)
![](http://www.thalassas.com/cdn/shop/products/unisex-staple-t-shirt-black-heather-front-643e13c4e937b_1024x.jpg?v=1681848922)
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Clownfish Protect Our Reefs T-Shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![Thalassas unisex T-shirt word thalassas under octopus logo, in color dark grey heather, adult size XL.](http://www.thalassas.com/cdn/shop/products/unisex-premium-t-shirt-dark-grey-heather-front-60bdb16eda2a5_{width}x.jpg?v=1623044522)
![Thalassas unisex T-shirt word thalassas under octopus logo, in color dark grey heather, adult size XL.](http://www.thalassas.com/cdn/shop/products/unisex-premium-t-shirt-light-blue-front-60bda69238aff_1024x.jpg?v=1623044522)
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Thalassas T-Shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![](http://www.thalassas.com/cdn/shop/products/SafeinHarborTankTopShopifyCollectionImage-min_{width}x.jpg?v=1682172066)
![](http://www.thalassas.com/cdn/shop/products/mens-staple-tank-top-black-front-643e0ab80485d_1024x.jpg?v=1682172066)
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Built for More Unisex Tank Top
- Regular Price
- from $29.00
- Sale Price
- from $29.00
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![Tiger shark short sleeve black t-shirt with tattoo inspired design of Japanese letters itiachizame, shark below, size 3XL.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-black-front-60123141e0410_{width}x.jpg?v=1619826053)
![Tiger shark short sleeve black t-shirt with tattoo inspired design of Japanese letters itiachizame, shark below, size 3XL.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-navy-front-60123141e0681_1024x.jpg?v=1619826053)
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Tiger Shark T-Shirt
- Regular Price
- from $24.99
- Sale Price
- from $24.99
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![Great white shark magna-inspired t-shirt, Japanese word hojirozame and shark drawing, size 3XL, color black, short sleeves.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-black-front-600f816e6561a_0d7460c9-8f03-4242-87f4-f5c09a9eaab1_{width}x.jpg?v=1619753179)
![Great white shark magna-inspired t-shirt, Japanese word hojirozame and shark drawing, size 3XL, color black, short sleeves.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-black-front-600f816e657ab_1024x.jpg?v=1619753179)
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Great White Shark T-Shirt
- Regular Price
- from $25.99
- Sale Price
- from $25.99
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![](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-black-front-637a883a3d0fa_{width}x.jpg?v=1668974660)
![](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-black-front-637a883a3e3bb_1024x.jpg?v=1668974661)
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Hadal Zone Deep Sea T-Shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![Mahi mahi short sleeve t-shirt, circle of words, live fast die young and mahi mahi fish, featured in black, size S.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-black-back-601f0a67b7bb8_{width}x.jpg?v=1612647333)
![Mahi mahi short sleeve t-shirt, circle of words, live fast die young and mahi mahi fish, featured in black, size S.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-black-front-601f0a67b75d7_1024x.jpg?v=1612647333)
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Mahi Mahi T-Shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![Thalassas unisex hoodie, with octopus logo at top and word thalassas at bottom, in adult size 4XL, color black.](http://www.thalassas.com/cdn/shop/products/ThalassasHoodie_Black_{width}x.jpg?v=1632343841)
![Thalassas unisex hoodie, with octopus logo at top and word thalassas at bottom, in adult size 4XL, color black.](http://www.thalassas.com/cdn/shop/products/ThalassasHoodie_Black_1_1024x.jpg?v=1632344361)
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Thalassas Unisex Hoodie
- Regular Price
- from $44.99
- Sale Price
- from $44.99
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![Thalassas unisex tank top, with octopus logo at top and word thalassas at bottom, in adult size XS, color black.](http://www.thalassas.com/cdn/shop/products/unisex-premium-tank-top-black-front-60de16f85da68_{width}x.jpg?v=1625167617)
![Thalassas unisex tank top, with octopus logo at top and word thalassas at bottom, in adult size XS, color black.](http://www.thalassas.com/cdn/shop/products/unisex-premium-tank-top-navy-front-60de16f85dbab_1024x.jpg?v=1625168524)
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Thalassas Unisex Tank Top
- Regular Price
- from $29.99
- Sale Price
- from $29.99
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![Heather grey/heather red ¾ sleeve raglan shirt with oarfish design on front of shirt, size M.](http://www.thalassas.com/cdn/shop/products/unisex-34-sleeve-raglan-shirt-heather-grey-heather-red-600e43d3cab41_{width}x.jpg?v=1619579267)
![Heather grey/heather red ¾ sleeve raglan shirt with oarfish design on front of shirt, size M.](http://www.thalassas.com/cdn/shop/products/unisex-34-sleeve-raglan-shirt-heather-grey-heather-red-600e4579eac2d_1024x.jpg?v=1619579267)
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Oarfish 3/4 Sleeve Raglan Shirt
- Regular Price
- from $26.99
- Sale Price
- from $26.99
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![Heather grey/heather charcoal ¾ sleeve raglan shirt with goblin shark design on front of shirt, size M.](http://www.thalassas.com/cdn/shop/products/unisex-34-sleeve-goblin-shark-raglan-shirt-heather-grey-heather-charcoal-front_{width}x.jpg?v=1635629284)
![Heather grey/heather charcoal ¾ sleeve raglan shirt with goblin shark design on front of shirt, size M.](http://www.thalassas.com/cdn/shop/products/woman-wearing-34-sleeve-goblin-shark-raglan-shirt-heather-grey-heather-charcoal-front_1024x.jpg?v=1635629284)
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Goblin Shark 3/4 Sleeve Raglan Shirt
- Regular Price
- from $26.99
- Sale Price
- from $26.99
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![Black short sleeve t-shirt with lionfish in center and words not friend above and below, size adult 3XL.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-black-front-601f0dfd15b73_{width}x.jpg?v=1619754174)
![Black short sleeve t-shirt with lionfish in center and words not friend above and below, size adult 3XL.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-navy-front-601f0dfd1663a_1024x.jpg?v=1619754174)
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Lionfish Food Not Friend T-Shirt
- Regular Price
- from $24.99
- Sale Price
- from $24.99
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![Black color version of the short sleeve T-Shirt with big boned elephant seal design on front of shirt, adult size M.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-black-front-605a9af59691e_{width}x.jpg?v=1629404525)
![Black color version of the short sleeve T-Shirt with big boned elephant seal design on front of shirt, adult size M.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-navy-front-605a9af5966f1_1024x.jpg?v=1629404525)
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Big Boned Elephant Seal T-Shirt
- Regular Price
- from $24.99
- Sale Price
- from $24.99
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![Heather prism lilac version of the short sleeve mola mola moods design t-shirt.](http://www.thalassas.com/cdn/shop/products/unisex-premium-t-shirt-heather-prism-lilac-front-6012284f08917_{width}x.jpg?v=1619829072)
![Heather prism lilac version of the short sleeve mola mola moods design t-shirt.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-dark-heather-front-608c96095c075_1024x.jpg?v=1620749849)
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Mola Mola Moods T-Shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![Blue marlin ocean nomad short sleeve white t-shirt with Blue marlin and words ocean nomad on back, size adult m.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-white-back-6086304a10a53_{width}x.jpg?v=1625325943)
![Blue marlin ocean nomad short sleeve white t-shirt with Blue marlin and words ocean nomad on back, size adult m.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-white-front-6086304a10687_1024x.jpg?v=1625325943)
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Blue Marlin Ocean Nomad T-Shirt
- Regular Price
- from $34.99
- Sale Price
- from $34.99
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![Gray whale ocean nomad short sleeve white t-shirt with whale and words ocean nomad on back, size adult m.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-white-back-6086301e94f11_{width}x.jpg?v=1619576385)
![Gray whale ocean nomad short sleeve white t-shirt with whale and words ocean nomad on back, size adult m.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-white-front-6086301e94b4f_1024x.jpg?v=1619576385)
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Gray Whale Ocean Nomad T-Shirt
- Regular Price
- from $34.99
- Sale Price
- from $34.99
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![Great white ocean nomad short sleeve white t-shirt with great white shark and words ocean nomad on back, size adult m.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-white-back-60862ff1b6b60_{width}x.jpg?v=1619576479)
![Great white ocean nomad short sleeve white t-shirt with great white shark and words ocean nomad on back, size adult m.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-white-front-60862ff1b6889_1024x.jpg?v=1619576479)
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Great White Ocean Nomad T-Shirt
- Regular Price
- from $34.99
- Sale Price
- from $34.99
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![Loggerhead turtle ocean nomad short sleeve white t-shirt with Loggerhead turtle and words ocean nomad on back, size adult m.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-white-back-60862f95507fc_{width}x.jpg?v=1619577792)
![Loggerhead turtle ocean nomad short sleeve white t-shirt with Loggerhead turtle and words ocean nomad on back, size adult m.](http://www.thalassas.com/cdn/shop/products/unisex-basic-softstyle-t-shirt-white-front-60862f9550634_1024x.jpg?v=1619577792)
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Loggerhead Turtle Ocean Nomad T-Shirt
- Regular Price
- from $34.99
- Sale Price
- from $34.99
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![](http://www.thalassas.com/cdn/shop/files/ThalassasAshMahiMahiXRayShirtBack_{width}x.jpg?v=1714622312)
![](http://www.thalassas.com/cdn/shop/files/ThalassasOceanBlueMahiMahiXrayShirtFront_1024x.jpg?v=1714622319)
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Mahi Mahi X-Ray Shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![](http://www.thalassas.com/cdn/shop/files/unisex-staple-t-shirt-light-blue-back-6632d8df97d3c_{width}x.jpg?v=1714703952)
![](http://www.thalassas.com/cdn/shop/files/unisex-staple-t-shirt-steel-blue-front-6632d8df93f20_1024x.jpg?v=1714703952)
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Flight Crew Shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![](http://www.thalassas.com/cdn/shop/files/ThalassasSailfishSkeletonShirtHeatherMidnightNavyBack_{width}x.jpg?v=1714770242)
![](http://www.thalassas.com/cdn/shop/files/ThalassasSailfishSkeletonShirtSteelBlueFront_1024x.jpg?v=1714770242)
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Sailfish X-Ray Shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![](http://www.thalassas.com/cdn/shop/files/unisex-staple-t-shirt-black-back-66384c8522dda_{width}x.jpg?v=1714965652)
![](http://www.thalassas.com/cdn/shop/files/unisex-staple-t-shirt-black-front-66384c8524959_1024x.jpg?v=1714965654)
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Black Water Viper
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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![](http://www.thalassas.com/cdn/shop/files/unisex-staple-t-shirt-navy-front-663bd043a3c92_{width}x.jpg?v=1715195984)
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Thalassas Octopus T-shirt
- Regular Price
- from $27.99
- Sale Price
- from $27.99
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Showing items 1-30 of 30.