We hope you enjoy our Kepler’s Law of Periods Short sleeve blue t-shirt. Kepler’s Law of Periods is commonly referred to as his third equation (law) and described as the square of the period of any planet is proportional to the cube of the semimajor axis of its orbit. Totally essential that we know this for spaceflight. The tri-blend fabric creates a vintage, fitted look. And extreme durability makes this t-shirt withstand repeated washings and still remain super comfortable.
• 50% polyester, 25% combed ring-spun cotton, 25% rayon
• Fabric weight: 3.4 oz/yd² (115.3 g/m²)
• Pre-shrunk for extra durability
• 40 singles
• Regular fit
• Side-seamed construction
• Blank product sourced from our friends Guatemala, Nicaragua, Mexico, Honduras, or the US