I would use four gates before adding a basic hoodie: customer fit, contribution margin, reliable fulfillment and a clear reason to buy from this store. Broad demand alone is not enough when many sellers offer a similar item.
Calculate margin after the garment cost, packaging, shipping subsidy, payment fees, likely returns and acquisition cost. For apparel, size-related returns and inconsistent quality can erase an attractive headline margin.
Order a sample and check fabric, stitching, fit, color consistency and supplier reliability. Then build a product page with actual photos, garment measurements, fabric/care details and a realistic delivery promise.
Test a small assortment or limited inventory before multiplying sizes and colors. Review sales, return reasons, size questions and repeat interest. Cross-promotion can help expose a product, but it cannot compensate for poor fit or an undifferentiated offer.
Is the hoodie intended as your core product, a complementary item, or a way to raise basket size? That changes the decision.