NWOT Swiftly Tech Long Sleeve 2.0 teal space dye print in size 10

I bought this for running but the upper sleeves a little too loose for m and I like them snug when I run. I’ve found the Swiftly 2.0 to run large, so I need a size 8 but wear a size 10 in the original version (38D/36DD bra size). This was the first 2.0 version I bought and have since ordered size 8 only.