LIFE PRESERVER

1 . A personal protection garment configured to cover at least a part of a wearer's body in use, wherein the protection garment includes an inflatable chamber configured to provide buoyancy to support the wearer's body on water when inflated to save the wearer from drowning.

2 . The garment of claim 1 , wherein the garment is configured to protect the wearer from at least one of fire, high G-acceleration and effects of altitude.

3 . The garment of claim 1 , wherein the inflatable chamber functions as a lifejacket or life preserver unit.

4 . The garment of claim 1 , further including triggering means for automatically triggering inflation of the inflatable chamber on contact with water.

5 . The garment of claim 1 , wherein the inflatable chamber extends over the wearer's chest and behind their neck.

6 . The garment of claim 1 , wherein the garment extends at least over the wearer's chest and back, and behind their neck.

7 . The garment of claim 1 , wherein the garment is a flight vest or a flight suit.

8 . The garment of claim 1 , wherein the inflatable chamber is an inflatable bladder.

9 . The garment of claim 8 , wherein the inflatable bladder is located under an outer garment layer of the garment when deflated, wherein the outer garment layer includes a line of weakness that opens due to pressure applied by partial inflation of the inflatable bladder to allow full inflation of the inflatable bladder outside the outer garment layer of the garment.

10 . The garment of claim 9 , wherein the outer garment layer is substantially inelastic.

11 . The garment of claim 9 , wherein the inflatable bladder is located between the outer garment layer and an inner garment layer of the garment when deflated.

12 . The garment of claim 11 , wherein the inner garment layer is configured to lie adjacent to the wearer's torso.

13 . The garment of claim 11 , wherein the inner garment layer is substantially inelastic.

14 . The garment of claim 9 , wherein the line of weakness is formed by a releasable coupling.

15 . The garment of claim 8 , wherein the inflatable bladder includes an inner bladder layer and an outer bladder layer, wherein the inner bladder layer is separate from the outer bladder layer.

16 . The garment of claim 15 , wherein the outer bladder layer comprises first and second sheets of material, wherein the first sheet of material has an outer surface and an inner surface, the second sheet of material has an outer surface and an inner surface, and the first sheet of material and the second sheet of material are connected at an edge region of each of the sheets so that a distal portion of the inner surface of one of the sheets overlaps a distal portion of the outer surface of the other one of the sheets, the distal surfaces being stitched together.

17 . The garment of claim 15 , further including a low friction material between the inner bladder layer and the outer bladder layer.

18 . The garment of claim 15 , wherein the outer bladder layer is substantially inelastic.

19 . A method of protecting a person from drowning, the method including providing the person with a protection garment configured to cover at least a part of the person's body to protect the person during normal use, wherein the protection garment includes an inflatable chamber configured to provide buoyancy to support the person's body on water when inflated to prevent the person from drowning, and the method includes inflating the inflatable chamber on contact with the water, or when contact with water is expected, so that the buoyancy protects the person from drowning.

20 . The method of claim 19 , wherein the inflatable bladder is located under an outer garment layer of the garment when deflated, wherein the outer garment layer includes a line of weakness that opens due to pressure applied by partial inflation of the inflatable bladder to allow full inflation of the inflatable bladder outside the outer garment layer of the garment.