Spreadshirt Aztec Calendar Men's T-Shirt Designed and printed in the USA. The Mayan Calendar ends in 2012 and we're still here. Yeah! Celebrate survival in style with this awesome Mesoamerican calendar design. Relaxed, tailored and ultra-comfortable short-sleeve t-shirt. You'll love the way you look in this durable, reliable classic. 100% pre-shrunk, heavyweight cotton (except for heathered colors); Fabric weight 5.0 oz. For best results and to maximize durability machine wash cold, inside out and tumble dry on low heat. Official sizing (width x length measured in inches): S (18" x 28") | M (19.5" x 29") | L (22" x 30") | XL 24" x 31") | XXL (26" x 32") | 3XL (27.5" x 32.5") | 4XL (34.5" x 29") | 5XL (31" x 35") | 6XL (33" x 37.5").