Heavyweight

Heavyweight describes fabric of substantial weight and thickness—typically 250+ GSM for t-shirts and 400+ GSM for sweatshirts. In streetwear, heavyweight has become synonymous with premium quality: these fabrics feel substantial in hand, hold structure without clinging to the body, resist the see-through quality of thinner materials, and develop character rather than deteriorating over time. Heavyweight cotton t-shirts have become a status marker in streetwear, distinguishing serious pieces from disposable fast fashion. The appeal extends beyond durability: heavyweight fabric drapes differently, creating cleaner silhouettes particularly important for oversized fits that might look sloppy in lighter materials. Brands like Goodwear, Lady White Co., and premium Japanese labels built reputations on heavyweight basics. The downside is heat retention—heavyweight isn't ideal for hot weather. But for collectors seeking investment pieces that improve with age, heavyweight represents the opposite of planned obsolescence: garments built to last years, not seasons.