• Measure your chest and compare to the size chart—oversized usually runs 2–4 inches larger than regular fit.
• Heavier GSM tees hold their shape better when oversized; lighter fabrics can look sloppy.
• If you're between sizes, size up for a true oversized look; your regular size will feel more cropped.
• Check the shoulder seam placement—oversized should sit past your natural shoulder, not exactly on it.
• For layering, consider the length: an oversized tee should hit mid-hip or longer to balance the silhouette.