Personal flotation device

1. A personal flotation device, comprising:

a chest portion having a top region and a bottom region, wherein a bottom edge of the chest portion angles upwardly toward a centerline of the device;

a shoulder portion extending from the top region of the chest portion and arranged to extend across at least a portion of the wearer's neck;

an abdominal portion having a width arranged to extend only partially around a wearer's body; and

a connecting portion positioned between the bottom region of the chest portion and the abdominal portion and extending only from a center region of the chest portion, wherein the width of the connecting portion is smaller than the width of both the chest portion and the abdominal portion, wherein the connecting portion is configured in a manner to extend along a wearer's sternum such that at least a portion of the connecting portion does not overlie a wearer's ribs, wherein the width of the connecting portion is between approximately 1-5 inches, and the ratio of the width of the connecting portion to the width of the chest portion is at least approximately 1:3;

wherein the chest portion, the shoulder portion, the abdominal portion and the connecting portion are each configured to be buoyant.

2. The personal flotation device of claim 1 ,

wherein the shoulder portion includes a first shoulder portion and a second shoulder portion each extending from the chest portion.

3. The personal flotation device of claim 2 , wherein the first shoulder portion, chest portion and second shoulder portion are constructed and arranged to form an approximately U-shaped portion to fit around a wearer's neck.

4. The personal flotation device of claim 1 , wherein the ratio of the width of the connecting portion to the width of the abdominal portion is at least approximately 1:3.

5. The personal flotation device of claim 1 , wherein the chest portion, the abdominal portion and the connecting portion are formed with an inflatable bladder, and the inflatable bladder is formed with two layers of material that are sealed around a perimeter.

6. The personal flotation device of claim 1 , wherein there is an abrupt transition between the connecting portion and the chest portion.

7. The personal flotation device of claim 1 , wherein the chest portion, abdominal portion and connecting portion are constructed and arranged to together form an approximately I-shaped portion.

8. The personal flotation device of claim 1 , wherein at least one of the chest portion, the abdominal portion and the connecting portion is formed with an inflatable bladder.

9. The personal flotation device of claim 8 , further comprising a device for inflating the bladder.

10. The personal flotation device of claim 9 , wherein the device for inflating the bladder includes a compressed gas cartridge.

11. The personal flotation device of claim 8 , wherein the bladder is made of an elastic material that stretches upon inflation of the bladder.

12. A combination comprising:

the personal flotation device recited in claim 1 ; and

a garment, wherein the personal flotation device is secured to the garment.

13. The combination of claim 12 , wherein the personal flotation device is removably secured to the garment.

14. The combination of claim 13 , wherein the garment further comprises a pocket constructed and arranged to removably secure the personal flotation device to the garment.

15. The combination of claim 12 , wherein at least one of the chest portion, the abdominal portion and the connecting portion is formed with an inflatable bladder, and wherein the garment is made of an elastic material that stretches upon inflation of the bladder.