What Is the Difference Between Men's Base Layers and Compression Wear?

Base layers describe layering position; compression wear describes a restraint-related function.

Men's performance garments need fit standards based on the intended body proportions and activity. Chest, shoulder, waist, and movement requirements should be evaluated together; generic size names or a familiar silhouette do not establish whether the garment will remain comfortable during actual training. Define warmth and support requirements separately.