Hash Cat Sweatshirt
Black / S
£40.00 GBP
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A cat made entirely of password hashes, on a heavyweight crewneck. Every one is real.
Sixteen hashes, from MD5 all the way to argon2id. Some crack in seconds. Some will keep your GPU busy for the weekend. One of them hides a flag worth points in our CTF; submit it under “Found on our merch” on the challenges page. And if you look closely, the cat has signed its work.
Warm enough for a long cracking session, and big enough to copy the hashes straight off whoever’s wearing it.
The details
• Full-front print, about 20 cm wide
• Soft 100% cotton outer face, with a 65% cotton, 35% polyester blend
• Heavyweight 288 g/m² (8.5 oz/yd²) fleece, soft on the inside
• Ribbed crew neck, cuffs and hem, with double-needle stitching
• Side seams for a better fit
• Fabric patch at the back of the neck
• Garment sourced from Pakistan
Sizing: this sweatshirt runs small. For your usual fit, order one size up.
Care: wash cold, inside out. Don’t iron over the print.
Hash Cat Sweatshirt
£40.00 GBP
Sixteen hashes, from MD5 all the way to argon2id. Some crack in seconds. Some will keep your GPU busy for the weekend. One of them hides a flag worth points in our CTF; submit it under “Found on our merch” on the challenges page. And if you look closely, the cat has signed its work.
Warm enough for a long cracking session, and big enough to copy the hashes straight off whoever’s wearing it.
The details
• Full-front print, about 20 cm wide
• Soft 100% cotton outer face, with a 65% cotton, 35% polyester blend
• Heavyweight 288 g/m² (8.5 oz/yd²) fleece, soft on the inside
• Ribbed crew neck, cuffs and hem, with double-needle stitching
• Side seams for a better fit
• Fabric patch at the back of the neck
• Garment sourced from Pakistan
Sizing: this sweatshirt runs small. For your usual fit, order one size up.
Care: wash cold, inside out. Don’t iron over the print.
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 |