The Best Bet
If you want to be an outstanding marathon supporter, pick up a MaxShield suit at JackRabbit Sports for your runner. The suit is designed to be worn at the beginning of the race, because temperatures in the starting area, near the Verrazano-Narrows Bridge, can be as much as 30 degrees cooler than inland. It’s paper-light, warm, and easy to strip off and discard as body heat rises—especially since it’s only $20 (42 W. 14th St., nr. Fifth Ave.; 212-727-2980).