This San Francisco 49ers Brock Purdy Black Rivalries Collection Nike Stitched Limited Jersey is an officially licensed NFL jersey made by Nike. The 2025 Rivalries Collection spotlights iconic matchups across the AFC East and NFC West divisions with new uniforms and fan gear inspired by local communities. In Week 18, the 49ers debut their Rivalries uniform when they host the Seattle Seahawks.Nike Rivalries Collection Limited JerseyFOREVER FAITHFUL: With an all-black base, San Francisco's legacy shines through with retro design details and gold accents.LIKE A FAMILY: Embroidery at the back neck and chest pays tribute to Niners fans everywhere.NODS TO THE PAST: Classic saloon-style numbers are sewn on with sublimated and printed details.Standard Fit: Not too tight or loose over your bodyDri-FIT® technology wicks away moistureMaterial: 100% Recycled PolyesterOfficially licensedSize ChartNike Limited Jersey Size ChartSizeXSSMLXLXXL3XLNeck (in.)13-13.514-14.515-15.516-16.517-17.518-18.519-19.5Chest (in.)33-3435-3738-4042-4446-4850-5254-56Sleeve (in.)31.5-3232.5-3333.5-3434.5-3535.5-3636-36.536.5-37Waist (in.)27-2829-3132-3436-3840-4244-4850-52