Press start — it's birthday time. The 'Birthday Mode On' tee puts a bold game controller front and center, ready to unlock the best day of the year. This is the shirt for every kid who celebrates like the final boss. 🎂🎮 XS S M L XL Age 4–5 yrs 6–7 yrs 8–9 yrs 10–11 yrs 12–13 yrs Width (in) 16.14 16.93 18.11 18.90 20.08 Length (in) 20.47 22.05 23.62 25.20 26.38 Sleeve (in) 13.39 14.17 15.35 16.14 17.32 Tolerance (in) 1.00 1.00 1.00 1.00 1.00 Product Features Gildan 5000B, 100% US cotton (5.3 oz/yd²) — soft, breathable, and built for all-day wear Tubular knit construction (no side seams) for a clean, comfortable fit Ribbed knit collar with shoulder tape for shape retention and durability Pearlized tear-away label — no scratchy tags, no fuss OEKO-TEX® STANDARD 100 certified for kid-safe comfort DTF printed design; ethically sourced blank Care Instructions Machine wash: warm (max 40C or 105F) Non-chlorine: bleach as needed Tumble dry: medium heat Iron, steam or dry: low heat Do not dry clean