It is definitely three rows of k1, p1 rib (not 4, MGM), but there are two garter stitch rows (not one Sue) There were close up images to the right side of the main picture frame and you could also "zoom" the selected photo.
The Hurdle stitch is a very close pattern match, just add one row of k1,p1 rib. The spa clothes had a garter stitch edge (I counted three purl bumps, but they may slip the first stitch of each row for a 4 sts selvage edge.)
That gives the pattern an odd number of rows, so perhaps it is doubled for a ten row repeat. (Row 6 to 10 would be reverse sts to rows 1 to 5, k becomes p & vice-versa) and end pattern with row 5 or 10 3 or 8.
I could not see the CO or BO edges. I would also think a seed or moss stitch along all four edges would better fit the rib gauge.
But you all know my knitting is only just a year old or so now.
Did you want a transcribed pattern?
Cast on for the width desired, using an odd number of stitches.
Four rows of your edging choice Garter, Moss, or Seed (G,M,S) stitch across.
(PRn = Pattern Row n where n is a number.)
PR1: 4 sts (G,M,S), * P1, K1 * across to last 5 sts, end P1, 4(G,M,S).
PR2: 4(G,M,S), * K1, P1 * across, end K1, 4(G,M,S).
PR3: 4(G,M,S), * P1, K1 * across, end P1, 4(G,M,S).
PR4 & 5: 4(G,M,S), K across, end 4(G,M,S).
PR6 & 8: 4(G,M,S), * K1, P1 * across, end K1, 4(G,M,S).
PR7: 4(G,M,S), * P1, K1 * across, end P1, 4(G,M,S).
PR9 & 10: 4(G,M,S), P across, end 4(G,M,S).
Repeat pattern rows 1 through 10 for length desired, ending with row 3 or row 8.
Repeat cast on edge pattern (G,M,S) for four rows. Bind off in pattern.
Does that look right? I'm a computer programmer first, so I tend to organize things in modules (like the G,M,S edge choice) and favor the initialisms.
I also like to use white space and indentation to help identify modules.
One could slip the first stitch of each row.
( Does a sl 1 knit wise creates a "cabled" edge? )