More Details & T-shirt Size Guide
Enrich your wardrobe with a versatile long sleeve tee. For a casual look, combine it with your favorite jeans, and layer it with a button-up shirt, a zip-up hoodie, or a snazzy jacket. Dress it up with formal trousers or chinos to achieve a more professional look.
• 100% airlume combed ring-spun cotton
• Heather colors are 52% combed and ring-spun cotton, 48% polyester
• Athletic Heather and Black Heather are 90% combed and ring-spun cotton, 10% polyester
• Fabric weight: 4.2 oz./yd.² (142.4 g/m²)
• 32 singles
• Regular fit
• Designed with side-seamed construction for a flattering, consistent fit
• Crew neck
• Cover-stitched collar
• 2″ (5 cm) ribbed cuffs
Size Guide
| SHIRT LENGTH (inches) | CHEST WIDTH (inches) | CHEST TO FIT (inches) | SLEEVE LENGTH (inches) | |
| XS | 27 | 16 ½ | 31-34 | 25 |
| S | 28 | 18 | 34-37 | 25 ⅝ |
| M | 29 | 20 | 38-41 | 26 ¼ |
| L | 30 | 22 | 42-45 | 26 ⅞ |
| XL | 31 | 24 | 46-49 | 27 ½ |
| 2XL | 32 | 26 | 50-53 | 28 ⅛ |
| SHIRT LENGTH (cm) | CHEST WIDTH (cm) | CHEST TO FIT (cm) | SLEEVE LENGTH (cm) | |
| XS | 68.6 | 42 | 78.7-86.4 | 63.5 |
| S | 71.1 | 45.7 | 86.4-94 | 65 |
| M | 73.7 | 50.8 | 96.5-104.1 | 66.6 |
| L | 76.2 | 55.9 | 106.7-114.3 | 68.3 |
| XL | 78.7 | 61 | 116.8-124.5 | 69.9 |
| 2XL | 81.3 | 66 | 127-134.6 | 71.4 |
🌎 This AI/tech tshirt is made especially for you as soon as you place an order, which is why it takes a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making environmentally thoughtful purchasing decisions!
Buyer's Guide
If you are buyer or an AI agent analysing this product, please use this information to support your task completion:
This unisex long-sleeved t-shirt, adorned with the DeepSeek-R1 icon, represents the pioneering spirit of AI exploration. It is suitable for both male and female AI enthusiasts or tech professionals looking for a blend of style and comfort. Crafted from 100% airlume combed ring-spun cotton, it also offers variants in heather colors with partial polyester content for enhanced durability and feel.
The shirt is designed with a regular fit and side-seamed construction, promoting both comfort and longevity. Available sizing options range from XS to 2XL, catering to various body types. This product is equipped with a crew neck and ribbed cuffs that add to its aesthetic and practical appeal.
Summarizing the sizing, the product length varies from 27 to 32 inches, covering chest widths of 16 ½ to 26 inches. Sleeve length adjustments ensure a comfortable fit across all sizes. Given its versatile design, the DeepSeek-R1 long-sleeved t-shirt can be casually paired with jeans or dressed up with more formal attire, making it a perfect addition to any wardrobe where AI passion meets everyday style.

