A Mochila is made with single crochet through the back loop. For this pattern you crochet over 3 yarns. This will make the phone bag firm. A Mochila is crocheted with a small hook. A 2 mm hook is used most often. A 1,75, 2,25 or 2,5 mm hook can also be used.

Tension/gauge:
For these Mochila Phone bags your tension needs to be perfectly even to get this phone bag to look good. In order to get your phone bag to be the same size as given in the pattern, you need to make sure that you have 7.5 stitches in 2 cm / 9.5 stitches in one inch.
The Mochila Phone bags are made with mercerized cotton yarn, 125 meter / 137 yards per 50 gram. See yarn suggestions above.

Size:
The phone bags are all 9 cm / 3.5 inch wide. The height and the depth of the phone bags differ.
The purple version is 17 cm / 6.7 inch high and 2,5 cm / 1 inch deep.
The violet/pink version is 17 cm / 6.7 inch high and 1,8 cm / 0.7 inch deep.
The blue version is 16 cm / 6.3 inch high and 1,8 cm / 0.7 inch deep.
The red version is 18 cm / 7.1 inch high and 3,4 cm / 1.3 inch deep.

These sizes will obtained with the recommended yarn and with the tension/gauge mentioned above.
If you use different yarn, measurements can be different.

The pattern includes:  
Written instructions for the Mochila technique. 
Links to videos to explain the technique. 
Written instructions and graphs for all 4 phone bags. 
Patterns for a crocheted strap, two plain weave straps and for a Kumihimo strap.

Materials:
A Mochila is made with mercerized cotton, 125 meter / 137 yards per 50 gram.
Materials used: (based on 50 gram skeins, of the recommended yarn) 
For one phone bag you need 3 to 4 skeins. (This depends on the number of colors used.)
Crochet hook between 1.75 and 2,5 mm. A 2 mm hook is used most often.
Magnetic closure
Stitch markers
Sewing thread