Sizes: S (M) L
Chest circumference: 112 (120) 127 cm
Length sweater: 55 (57) 59 cm (or your preferred lenght)
Sleeve lenght: 42 cm (or your preferred lenght)

Yarn: Sandnes kos or Drops air (sweater is worked in 2 strands of yarn held together)
Amount of yarn: 5+5 (5+5) 6+6 balls if using two colors or 9 (10) 11 balls if using one colour
Gauge: 11 sts on needle 8 = 10 cm
Recommended needles: circular needles 8 mm (40 + 80/100 cm)

The Tessa sweater is worked from the top down with raglan increases. You begin by casting on stitches for the neckline, then place stitch markers to divide the work before continuing with increases for the sleeves, front, and back. The work is then divided into three parts, and the sleeves and body are finished separately, each ending with an i-cord edge. Finally, stitches are picked up around the neckline, which is also finished with an i-cord edge.

The blue sweater (size m) in the photos is knitted in Drops Air (01+16). The green one (size m) is knitted in Sandnes Kos (1012+9052). The dark grey one (size m) is knitted in Drops Air (06) — it is knitted shorter than the pattern specifies and without i-cord edges.

Helpful videos:
How to increase by M1L/M1R: http://www.youtube.com/watch?v=XygPZ2cWBeA&t=105s%EF%...
Divide the work into body and sleeves: https://youtu.be/HqEAbDAG4Kw
I-cord edge: https://youtu.be/loKN36HcYIY