Unfortunately it is currently impossible to buy a pattern through Ravelry. Pattern is available here :

https://dailydoll.shop/shop/sackboy-amigurumi-crochet-pat...

Crochet Sackboy just straight from Little Big Planet’s World!

the hero is crocheted of cotton. stuffed with holofiber toy. made entirely by hand.

English pattern for Sackboy .
THIS IS A DIGITAL FILE, NOT THE FINISHED DOLL.

INTERMEDIATE LEVEL - due to details and alternative materials used in this pattern

The finished doll is aprox 30 cm tall (11,8”)