UniBella Baby Shoes, size 9-10 cm (for 4-5 kg baby), measurement converter here
Yarn: Alize Bella white 055 and grey 021 (100% cotton, 50g/180m, for US here), pictures zde I used a ball from each collor, if you crochet one-color shoe, one ball is enough. The whole shoe is made of doubled yarn.
Hook: 4 mm a 5 mm
Button (2x)
Time: 2-3 hours
Suitable for pre-intermediate
US terminology
SlSt – slip stitch
CH – chain
SC – single crochet
PDS – half double crochet
Each row starts with either 1 CH = Single Crochet or 1 loose CH = Half Double Crochet and ends with SlSt. This not apply if you use markers and crochet in circles. This pattern is written in columns that is the way the shoe is usually crochetted. Also you start with a chain and continue around this chain.

Zdroj: http://www.krampolinka.cz/en/boticky-unibella-videonavod-7/