Nine Lives Geometric Cat T-Shirt

A geometric cat t-shirt and a gift for cat lovers who also love math: a line-art cat built from twenty-seven rings on the back of a heavyweight cotton tee, with a small cat at the chest, in white or apricot.

The same equation as the hoodie, on the lightest thing we print it on.

Twenty-seven lines. The innermost is a plain circle; each ring outward is allowed a little more of the cat and turned a little less, until the last line is the whole animal. Nothing is filled in. The shape comes from the spacing alone, which is why it sits on an undyed-looking ground.

The design

Charcoal, sage, forest-green and rust rings across the back, every ninth line drawn darker so the lives can be counted. Nekomori wordmark and Field Equations / No.02 Nine Lives above; 猫森 and the equation below. A small version of the drawing on the left chest.

The fit

Loose, relaxed unisex cut in a heavier cotton that holds its shape at the shoulder and hem.

The blank

• 100% cotton, 260 g/m² (7.7 oz)
• Heavyweight jersey, round crew neck
• Sizes S–3XL
• Printed with DTF (direct-to-film) transfer

Giving it as a gift

A nerdy cat gift for the math teacher, engineer or puzzle lover with a cat at home. The equation behind the drawing is printed beneath it, so it starts conversations, and the heavier cotton holds its shape wash after wash.

• Sizing for someone else: It's a loose, relaxed unisex cut, so their usual t-shirt size is the one to choose. Sizes S–3XL. If it doesn't fit, it can come back within 30 days of delivery, unworn, with free return shipping.
• Ordering for Christmas or a birthday: every piece is printed after it is ordered, so count back about three weeks and order before then. The dated delivery estimate under the buy button is the one to go by, and checkout offers express shipping on most garments if you are cutting it close.

Buying for more than one cat person? Our guide to gifts for cat lovers that they'll actually wear has more ideas, and how to get a size right without asking.

Color, Pattern & Material

• Color: White or Apricot, with charcoal, sage, forest-green and rust artwork.
• Pattern: Geometric line-art cat head of 27 morphing rings on the back; small matching print on the left chest.
• Material: 100% cotton, 260 gsm.

Field Equations is Nekomori's series of cats drawn by mathematics instead of by hand: each design is a single equation, rendered, then left alone.

Printed for your order — nothing is held in stock. Artwork original to Nekomori, generated from the equation printed beneath it.

Care

• Machine wash at 30°C / 86°F, gentle cycle, inside out
• Do not bleach
• Tumble dry low
• Iron at low temperature, never directly on the print
• Do not dry clean

Size guide

Garment measured flat. Chest is the width across the body, armpit to armpit.