// social proof · reviews
Built for us. Reviewed by us.
★ 4.8 · 2,400+ reviews

A funny AI-themed t-shirt featuring a crying pixel character and the phrase “Make No Mistakes.” Designed for developers, prompt engineers, AI users, programmers, software engineers, and tech professionals who know that even artificial intelligence tools can fail, hallucinate, or generate unexpected results. This design blends Claude-style AI humor, coding culture, chatbot jokes, and relatable developer frustration into a clever shirt for anyone working with LLMs, automation, debugging, coding assistants, and modern AI workflows. Rock a classic sweatshirt silhouette with ribbed crew neck, long sleeve cuffs, and a flat hem. Layer it up or wear it on its own for a contemporary streetwear look. With the soft fleece inside and comfortable fit, it’s sure to become your favorite everyday sweater right away! • 100% cotton face • 65% cotton, 35% polyester • Charcoal Heather is 55% cotton, 45% polyester • Fabric weight: 8.5 oz/y² (288.2 g/m²) • Tightly knit 3-end fleece • Side-seamed construction • Self-fabric patch on the back • Double-needle stitched rib collar, cuffs, and hem • Blank product sourced from Pakistan Disclaimer: This sweatshirt runs small. For the perfect fit, we recommend ordering one size larger than your usual size. 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! Age restrictions: For adults EU Warranty: 2 years Other compliance information: Meets the flammability, lead, cadmium, bisphenols and phthalates level requirements. In compliance with the General Product Safety Regulation (GPSR), Oak inc. and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 123 Main Street, Anytown, Country or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.Size guide BODY LENGTH (inches) CHEST WIDTH (inches) SLEEVE LENGTH (inches) S 27 20 23 ½ M 28 21 24 L 29 23 24 XL 30 25 24 2XL 31 26 ½ 24 3XL 32 28 24 BODY LENGTH (cm) CHEST WIDTH (cm) SLEEVE LENGTH (cm) S 68.6 50.8 59.7 M 71.1 53.3 61 L 73.7 58.4 61 XL 76.2 63.5 61 2XL 78.7 67.3 61 3XL 81.3 71.1 61
A funny AI-themed t-shirt featuring a crying pixel character and the phrase “Make No Mistakes.” Designed for developers, prompt engineers, AI users, programmers, software engineers, and tech professionals who know that even artificial intelligence tools can fail, hallucinate, or generate unexpected results. This design blends Claude-style AI humor, coding culture, chatbot jokes, and relatable developer frustration into a clever shirt for anyone working with LLMs, automation, debugging, coding assistants, and modern AI workflows. Rock a classic sweatshirt silhouette with ribbed crew neck, long sleeve cuffs, and a flat hem. Layer it up or wear it on its own for a contemporary streetwear look. With the soft fleece inside and comfortable fit, it’s sure to become your favorite everyday sweater right away! • 100% cotton face • 65% cotton, 35% polyester • Charcoal Heather is 55% cotton, 45% polyester • Fabric weight: 8.5 oz/y² (288.2 g/m²) • Tightly knit 3-end fleece • Side-seamed construction • Self-fabric patch on the back • Double-needle stitched rib collar, cuffs, and hem • Blank product sourced from Pakistan Disclaimer: This sweatshirt runs small. For the perfect fit, we recommend ordering one size larger than your usual size. 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! Age restrictions: For adults EU Warranty: 2 years Other compliance information: Meets the flammability, lead, cadmium, bisphenols and phthalates level requirements. In compliance with the General Product Safety Regulation (GPSR), Oak inc. and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 123 Main Street, Anytown, Country or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.Size guide BODY LENGTH (inches) CHEST WIDTH (inches) SLEEVE LENGTH (inches) S 27 20 23 ½ M 28 21 24 L 29 23 24 XL 30 25 24 2XL 31 26 ½ 24 3XL 32 28 24 BODY LENGTH (cm) CHEST WIDTH (cm) SLEEVE LENGTH (cm) S 68.6 50.8 59.7 M 71.1 53.3 61 L 73.7 58.4 61 XL 76.2 63.5 61 2XL 78.7 67.3 61 3XL 81.3 71.1 61
Free shipping on orders over US$99. Standard delivery in 5-10 business days. 30-day returns on unworn items with tags.
// social proof · reviews
Built for us. Reviewed by us.
★ 4.8 · 2,400+ reviews
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