Celebrate Earth science and make meaningful connections with this black versatile long sleeve tee. From its breathtaking surface to the hidden depths of its interior, Earth is a wondrously complex world. 6,400 km beneath our feet, it's impossible to explore this underworld—even the most ambitious attempt only drilled to 12 km! Still, brilliant minds like Isaac Newton have managed to comprehend Earth's structure by examining seismic waves, measuring its density, gravity & magnetism.

Earth's interior comprises four layers: inner core, outer core, mantle and crust. At 1,220 km, the solid iron and nickel core lies 6,400 - 5,180 km beneath the surface. Extreme temps reach 5,400°C - almost as hot as the sun - & pressures exceed 3 million times Earth's surface. The outer core, 2,880 km down, is liquid iron and nickel heated by radioactive elements. This creates Earth's magnetic field, fluctuating every 200-300K years. The mantle is the deepest layer, 30 km down & almost 3,000 km wide. Consisting of iron, magnesium & silicon, its semi-solid rock forms the asthenosphere. The uppermost part of the mantle layer connecting to the crust are known as the lithosphere. The 5-70 km crust is akin to an eggshell, made of lightweight elements like silica, aluminum and oxygen. It is joined to the  tectonic plates, which move 3-5 cm/year. Such shifts trigger earthquakes & volcanoes, constantly reshaping the surface of our planet.

• 100% combed and ring-spun cotton
• Heather colors are 52% combed and ring-spun cotton, 48% polyester
• Athletic Heather is 90% combed and ring-spun cotton, 10% polyester
• Main color black
• Fabric weight: 4.2 oz/yd² (142.4 g/m²)
• Regular fit
• Side-seamed construction
• Crew neck
• Cover-stitched collar
• 2″ (5 cm) ribbed cuffs
• Blank product sourced from Nicaragua, Honduras, or the US
• Designed by Philoshoppy
• Designed, Digitized and dispatched from Europe
• Usually produced within 1-4 days
• Average Delivery timelines 2 weeks
  
• Measure yourself and refer to the size guide before ordering
• No returns, no refund. Product made to order just for you!

Product colors may differ from the pictures. The digital representation may alter the coloring of the product depending on your viewing screen.
This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

Size guide