This is the nikoli.com original T-shirt. It is not for sale, you have to win it!
You get this T-shirt as one of the prizes in the Puzzle Championship, Nikoli Derby and in other nikoli events.
The T-shirts are made of thick, durable cotton fabric. If you are lucky enough to get one of these very special T-shirts, wear it to show off in your neighborhood.
nikoli.com original T-shirt 2010 version







nikoli.com original T-shirt 2007 version



Size of the T-shirts
nikoli.com original T-shirts are made in standard Japanese mens sizes. For detailed information of the sizes, please refer to the table below.
| Size | 2007 Version | 2010 Version | Length | Chest | Sleeves length | ![]() |
|---|---|---|---|---|---|---|
| XXL | Green | Silver Gray | 82cm | 61cm | 26cm | |
| XL | Lime | Sea Blue | 78cm | 58cm | 24cm | |
| L | Black | Ice Green | 74cm | 55cm | 22cm | |
| M | - | Light Blue | 70cm | 52cm | 20cm | |
| S | - | Peach | 66cm | 49cm | 19cm |



