For the quintessence of classical philosophy, see Aether (classical element). Boron is a chemical element with symbol B and atomic number 5. Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in the Solar system and in the Earth's crust.
The weight of a polo shirt depends on the size and fabric. The  average weight for a men's short-sleeved polo shirt in size large  is about 8 ounces.1 person found this useful.ow much does a medium sized t-shirt weigh?   On average: Small: 6 oz. Medium: 6.5 oz Large: 7 oz X-Large 7.50 2X-Large 8.75 3X-Large 9.50 But it can vary depending on material.
Polo size guide for men. The sizing system for our menâs polo shirts is unique. Available in eight sizes, ranging from size â2â to size â9â, our polo sizing enables each and every man to choose just the perfect polo for his personal style and comfort.To convert your usual size into a Lacoste size, please refer to the chart below.Sizing Chart.vailable in eight sizes, ranging from size â32â to size â50â, our polo sizing enable each and every woman to choose just the perfect polo for her personal style and comfort. To find which size will fit best, please refer to the chart below.