I'm a 5'4" woman about 129 I wear a medium...
I'm a 5'4" woman about 129 I wear a medium in the 2XU trisuit. Is this a men's or women's sized product?
Here's a link to their Arm Sleeves sizing - click on size chart and then Compression Arm Sleeves. You'll need your bicep and forearm measurements to determine the right size.