First off, let me say this sauna suit delivers on its promise to make you SWEAT. I wore it during my morning jog, and within 10 minutes, I looked like I'd jumped in a pool. The double-layered compression around my waist felt surprisingly supportive - like a firm hug rather than uncomfortable squeezing.

The armpit and crotch mesh? Lifesaver. Without those breathable panels, I would've suffocated. They allow just enough air flow while still trapping heat where it counts. The zipper glides smoothly (no awkward contortions to put it on), and the safety buckle gives peace of mind when doing jumping jacks.

Now about sizing: LISTEN CAREFULLY. I normally wear Medium but ordered Large based on reviews, and it fits perfectly snug. The XL reviewers mention fitting like US Medium isn't exaggerating - size up at least one, maybe two sizes if between measurements.

The elephant in the room? That chemical smell hit me when I opened the package. Washed it twice with vinegar before first use (don't machine dry!), and after three workouts, the odor's about 80% gone. Pro tip: Hang it to air out immediately after each use.

After two weeks of alternating between yoga and HIIT sessions: 1) My skin feels smoother (all that sweating must be detoxing something) 2) Waist looks more defined 3) It's become my secret weapon for breaking through plateaus. Just be ready to hydrate like crazy - you'll lose water weight fast.

Final verdict? If you can handle the initial smell and size quirks, this suit absolutely amplifies workouts. Not magic - you still gotta put in the effort - but like having a personal sauna session while exercising.