Calypso uses two of my favorite yarns:
Spincycle Yarns Dyed In The Wool along with Rowan Felted Tweed in 2-colour colourwork that looks like a lot more than 2 colours thanks to Spincycle's colour-changing magic. I love how complex the yoke looks, with areas that are high contrast and low contrast intermingling.

I've added some sweet little details on this jumper that I really love, particularly the picot edge neckline and hem.
The body length is slightly cropped, and the sleeves are 3/4 length. I have found this jumper to have a great fit, and while pulling off quite a striking look, it feels like a comfy sweatshirt to wear!

Construction:
Calypso Sweater is a yoke-style pullover knit seamlessly from the top-down in the round, with a double-rolled picot neckline, colorwork yoke, slightly cropped body with a double-rolled picot hem, and 3/4-length sleeves.

Sizing:
Sizes listed are finished garment measurements. To find your size, measure your bust around its widest point, add desired amount of ease and choose the size closest to that number.

Sizes: XS (S, M, L, XL)(2XL, 3XL, 4XL, 5XL)

Finished Measurement at Bust: 81(91,102, 110,120)(130, 141, 151, 160)cm/ 32(36, 40, 44, 48)(52, 56, 60, 64)in

To fit bust size: 71-76 (81-86, 91-96, 102-107, 112-117)(122-127, 132-137, 142-147, 152-157)cm/ 28-30 (32-34, 36-38, 40-42, 44-46)(48-50, 52-54, 56-58, 60-62)in

Calypso Sweater is #sizeinclusive

Ease:
Intended to be worn with 5-10cm/2-4in positive ease around the bust

Needles:
3.75mm/US Size 5 circular needles (40cm/ 16in length for neckline, 60-100cm/ 24-40in length for body)
3mm/US Size 2.5 circular needles (40cm/ 16in length for neckline, 60-100cm/ 24-40in length for body)
3.75mm/US Size 5 double-pointed needles (or your preferred small circumference needle such as shorties or Magic Loop method)
3mm/US Size 2.5 double-pointed needles (or your preferred small circumference needle such as shorties or Magic Loop method)
Or needle sizes to obtain gauge

Notions:
Tapestry needle (for finishing) Stitch Markers- at least 1 distinct marker for BOR

Yarn:
C1: Spincycle Yarns Dyed In The Wool (100% wool, sport-weight/5 ply, 183m/200y per 50g)
color pictured: Ghost Ranch
C2: Rowan Felted Tweed (50% merino wool 25% alpaca, 25% Viscose, light DK-weight/8 ply, 175m/191y per 50g)
color pictured: French Mustard (shade 216)
Or similar yarns that can achieve gauge

Note: I find Rowan Felted Tweed to be a lighter DK-weight, which is why it pairs nicely with Spincycle Dyed In The Wool and knit at a sport-weight gauge. Please bear this in mind if substituting yarns- I recommend sport to light-DK weights.

Quantities Needed:
C1: 2(2, 2, 2, 2)(3, 3, 3, 3) skeins
C2: 4(4, 4, 5, 5)(6, 6, 7, 7) balls

If substituting yarn, approx. amounts required:
C1: 248(267, 286, 305, 343)(381, 400, 438, 457)m/ 271(292, 313, 334, 375)(417, 437, 479, 500)y
C2: 601(647, 693, 740, 832)(924, 971, 1063, 1109)m/ 657(708, 758, 809, 910)(1010, 1062, 1163, 1213)y