Part 1

Begin crocheting from the bottom to top.
Make a foundation chain of 124 chs or multiples of 3 chs plus 1 additional ch (the number of repeats should be odd).
Join it into a ring with the slip stitch.

1st round – ch3, dc* to end + sl.st.1 into 3rd ch
*you should have 122 double crochets and 3 initial chs

2nd round – ch3, dc1, ch1, sk1, [dc2, ch1, sk1] to end + sl.st.1 into 3rd ch
3rd round = 1st round
4th round = 2nd round

Pattern
5th round – ch2, sk2, [bump1, loose ch1, sk2] to end ; sc1, picot + sl.st.1 into 1st ch
Use a smaller size hook

6th round – (sl.st.1, ch3, insert hook into 2nd ch from hook, sc1) into 1ch, [loose ch1, sk bump, bump1] to end + hdc1 into 1st bump

7th round - ch2, sk bump, [bump1, loose ch1, sk bump] to end ; sc1, picot + sl.st.1 into 1st ch
Repeat the pattern starting from the round 6 until you crochet to your under arms.

Part 2

Last round – ch1, [ch1, sk bump, sc2 under 1ch] x 5, [loose ch1, sk bump, bump1] x 16, [ch1, sk bump, sc2 under 1ch] x 5, [loose ch1, sk bump, bump1] x 14, loose ch1, sk bump, sc1, picot + sl.s.t1 into 1st ch

Front part
Work one slip stitch into the following chain from the hook and make two chains to pick up the height. Then turn your work to the wrong side of the garment.
1st row (wrong side) – dc1, [ch1, sk bump, dc2 under 1ch], ch1, sk bump, dc dec1 + RC3
2nd row (right side) – h5ch, dc dec2, dc to last 5 chs; dc dec2, dc1 + RC2
3rd row – h4ch, dc1,[ch1, sk1, dc2] to last 3chs; ch1, sk1, dc dec1 + RC3
4th row - h5ch, dc dec2, dc to last 5 chs; dc dec2, dc1 + chain 33

Back part
Attach the yarn one chain before the first bump.
1st row (right side) – [loose ch1, sk bump, bump1] to last bump; loose ch1, sk bump, sl.st.1 + RC2
2nd row = 1st row (front part)
3rd row = 2nd row (front part)
4th row = 3rd row (front part)
5th row = 4th row (front part)

Join back and front parts
Work slip stitch 1 to join back and front parts together.
1st round – ch3, dc above chains, hdc to last round, hdc dec1, hdc to end of the round, hdc dec1, hdc to double crochets + sl.st.1 into 3rd ch
2nd round – ch2, dc1, [ch1, sk1, dc2] above dcs, [ch1, sk1, hdc2] to end + sl.st.1 into 2nd ch
3rd round – ch2, dc15, dc dec1, dc above dcs, hdcs to end + sl.st.1 into 2nd ch
4th edge round – [sl.st.2, (sl.st.1, ch3, sl.s.t1) into 1ch] to end

Join front and back parts totally the same way as you joined back and front parts working the same four rounds.
Crochet the edge round around the neck and initial foundation chain.