Our most popular unisex/men's sized jacket! Sigma Delta Tau Greek twill letters are sewn-on either the left chest in 2 inches, or on the back in 4 or 6 inches. New Option - you can now add 2-inch twill letters to the left chest of the jacket that match the 4-inch or 6-inch ones you are adding to the back of the jacket. This new option is also in the the dropdown for letter placement - additional cost. Water-resistant River Tec Nylon lined with 100% cotton flannel. Open hem with shockcord drawstring. Elasticized cuffs; extended zipper above neck for wind protection. Unisex/Men's sizing. Rush service is available for a fee of 20% of total, this service can be selected during checkout.