32 DegreesMen's Lightweight Baselayer Legging | Form Fitting | 4-Way Stretch | Thermal

Trying to decide what size I need? I have a 30” waist and 32” inseam and skinny legs. The size chart says S, but not sure if the S will be too tight?

What is the inseam for XL?

Is there a fly opening

Are these a Chinese knock off?