Windbloc vest/with inside pockets
Man does this work for me,i droped two hand warmers in the front inside pockets this morning and did a 21 miler in 26degrees,had a light polartec top on over that and a thin base t shrit,it worked great,the thing is to dress as close to summer as you can and stay warm, if you convience your brain that your core is warm it will let the blood flow to your hands and feet and keep them warm,but if it thinks for a second that your vital organs are in any danger, you had it,the system just uses the imformation you give it.(enjot the ride!)