This t-shirt features an endearing, hand-drawn "sketchbook" design dedicated to Rocky, the beloved Eridian engineer from Project Hail Mary. The illustration compiles various doodles and iconic phrases, including "Fist my bump!", "Amaze! Amaze! Amaze!", and the classic "You are leaky space blob," alongside technical sketches of Rocky himself. It is an essential piece for fans who want to capture the playful, scientific heart of their interstellar friendship.
✨ Quality Built for an Eridian-Human Partnership
Our commitment to quality ensures your favorite "sketchbook" design remains legendary:
Premium Fabric: Crafted from soft, breathable 100% black cotton for ultimate comfort during your own scientific explorations.
Support Independent Artists: This whimsical, custom-designed graphic is sourced from talented creators who specialize in fan-favorite character studies and illustrative storytelling.
Vibrant, Eco-Friendly Print: Each order is custom printed using environmentally friendly, water-based inks to ensure the stark white, "chalk-on-blackboard" style lines remain sharp and legible.
Amaze-Grade Durability: Our specialized ink bonds into the fabric fibers, ensuring the intricate doodles and shorthand text won't crack or wash off.
Project Hail Mary: Rocky Sketchbook T-Shirt
SIZE HALF CHEST (CM) LENGTH XXS 44 64 XS 48 67 Small 50 70 Medium 53 73 Large 56 76 XLarge 62 79 XXLarge 65 82 69 84 - How to measure and use Half Chest
The "Half chest" or "across-chest" measurement is obtained by laying the Short Sleeve T-Shirt flat on a flat surface. The garment is then measured across the front, side to side, from just a few centimeters below where the sleeve joins the body of the garment.
Measure one of your current Short Sleeve T-Shirts with this method to determine the size you need.
- How to measure length
Short Sleeve T-Shirt length is measured from the neck seam to the bottom of the Short Sleeve T-Shirt.
- How to measure and use Half Chest

































