OFFICIALLY LICENSED MLB PRODUCT: Showcases authentic Ken Griffey Jr. player details, including his name and number on the back, and Seattle Mariners wordmark on the front, offering a true fan experience for the next generation. PRO-INSPIRED ON-FIELD DESIGN: Styled just like what the Mariners wear at Alternate, featuring a button-front closure, MLB Batterman silhouette on the back neck, and heat-applied woven jock tag, bringing an authentic major league look to your child’s wardrobe. HIGH-QUALITY GRAPHICS: Heat-applied twill appliques mimic the real stitching seen on on-field jerseys, delivering a professional, durable finish that stands up to play and washes. LIGHTWEIGHT & BREATHABLE COMFORT: Made with 100% polyester and enhanced moisture-wicking technology to keep kids cool and dry whether they’re active or relaxing. The tailored athletic cut ensures comfort and ease of movement. AVAILABLE IN KIDS YOUTH SIZES 4–20: Designed to fit kids ages 4 to 20, with a full range of sizes (4, 5/6, 7, 8, 10/12, 14/16, 18/20), making it easy to find the perfect fit for any young Mariners fan. Let your young fan cheer on the Seattle Mariners in authentic style with the officially licensed Ken Griffey Jr. Seattle Mariners Youth Alternate Jersey. Inspired by the on-field gear worn by the pros, this button-front jersey brings a bold, game-day-ready look with premium comfort and performance—perfect for little sluggers aged 4 to 20. Designed in the Mariners classic Alternate colors, this jersey features heat-applied twill appliques with faux stitching, showcasing Griffey Jr.’s name and number on the back and the Mariners wordmark on the front. A heat-applied MLB Batterman patch sits just below the back collar, offering an official on-field touch. Crafted from 100% lightweight polyester, the jersey incorporates moisture-wicking technology to help keep kids cool and dry during play, practice, or cheering from the stands. The standard, tailored fit allows for flexibility and movement while maintaining a sharp, clean look. Available in Youth Sizes 4–20 (Size 4, 5/6, 7, 8, 10/12, 14/16, 18/20), this jersey is a perfect gift for birthdays, holidays, or game-day outfits. Whether they're headed to the Stadium or watching from Alternate, your young fan will be game-day ready in the Ken Griffey Jr. Mariners Youth Jersey—a must-have for any future all-star.