Hi Kathryn, I'm taking the liberty of stepping in and trying to help out a little. I'm not very organized so please pardon the mess.. Here goes.
The brand and style numbers that Cathe and crew are wearing in Muscle Max,(purple) High Step Challenge pink, and the Lime one with the band (?) is: The Rio DE Janeiro Group. They come in colors Purple, Pink, Lime, and Blue.
The pants are black with two-toned bands. Style #3364 they are called trio color waistband, easy crop bootlegs, side slits.
The tops are: style #1775, scoop front bra top, contrast piping detail, x-back, front lined
and style #1777 scooped front, side piping details x-back, shelf bra tankini
The blue top in Core Max is #1134
Stretch Max is Oh My Bod Style #5200 Deep brown and pink
3 bra tops, turquoise, pink, and black I don't have a number for but they are Oh My Bod. The yellow tops and shorts are on my personal backorder. I do not have a number at this time.
Kick Max: The black pants Oh My Bod #1720 and the top I believe is NIKE.
I have no affiliation with the company or its distributors, I just like the clothes and I think Sharon is cool. ;-)
Having actual numbers will sound more professional in placing an order. I stammered around with, "I want what Cathe and the girls bought." Which was easier than, "I want what Cathe is wearing in this video and what Brenda wore in that one." LOL
Have fun shopping....