40th Birthday Gift T-Shirt - Vintage Original Parts 1979 &gt; A GREAT GIFT IDEA - With all years available, several color options and sizes up to 5X this is the perfect gift for a birthday, Christmas, Father's Day, Mother's Day or just an unexpected surprise. PRODUCT QUALITY - 100% preshrunk cotton t-shirts (heathered colors are blended), custom screen printed using an eco-friendly plastisol or waterbased ink to ensure color fastness and long lasting durability. FAST SHIPPING - Orders ship within one business day and FREE SHIPPING options are offered for all of our products. SHIRTINVADERS BRAND - This is a one of a kind exclusive 40th birthday design... Created by ShirtInvaders! We have ALL YEARS available and several design options search "ShirtInvaders 40th Birthday" to see all available options. CUSTOMER SATISFACTION - 100% Money Back Guarantee. ShirtInvaders brand apparel.