This minimalist vintage-style tee features a clean black line illustration of a tree cross-section surrounded by ferns and mushrooms, celebrating dendrochronology the science of tree-ring dating rooted in the Holocene Epoch. Rendered in a timeless, slightly distressed natural history style with black ink on a white background, the design blends ecology, botany, and environmental science into a calm, academic aesthetic. Made from 100% ring-spun cotton (high-quality cotton) with a soft, sensory-friendly feel. Every order funds kelp restoration on the Pacific Northwest coast.