Trilobites (meaning "three lobes") are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period (521 million years ago) and they flourished throughout the lower Paleozoic before slipping into a long decline, when, during the Devonian, all trilobite orders except the Proetida died out. The last trilobites disappeared in the mass extinction at the end of the Permian about 251.9 million years ago. Trilobites were among the most successful of all early animals, existing in oceans for almost 270 million years, with over 22,000 species having been described.
The unisex soft-style t-shirt puts a new spin on casual comfort. Made from very soft materials, this tee is 100% cotton for solid colors. Heather colors and sports grey include polyester. The shoulders have twill tape for improved durability. There are no side seams. The collar is made with ribbed knitting to prevent curling damage.
.: Made with 100% ring-spun cotton, a lightweight fabric (4.5 oz/yd² (153 g/m²)), this unisex t-shirt feels like a bliss to wear all year round. 
.: The classic fit with the crew neckline deliver a clean, versatile style that can match any occasion, whether it's formal or semi-formal. 
.: All shirts feature a pearlized, tear-away label for total wearing comfort. 
.: Made using ethically grown and harvested US cotton. Gildan is also a proud member of the US Cotton Trust Protocol ensuring ethical and sustainable means of production. This blank tee is certified by Oeko-Tex for safety and quality assurance.
.: Fabric blends: Heather colors - 35% ring-spun cotton, 65% polyester; Sport Grey and Antique colors - 90% cotton, 10% polyester, Graphite Heather - 50% ring-spun cotton, 50% polyester