The M3 Rescue Jackets are Amazing.
Stream line design and Low Center of Gravity alows them to navigate the rough waters.   
Able to fly in 30 mph winds 
 
 
The M3 can fly with 25 ounces of weight with no issues ,
the Rescue Jackets only weight 4.5 ounces.  
 
Able to fly in 20 mph winds for close to 30 Minutes.
https://vimeo.com/658214106
 
There ability Negotiate A remote landing on water fantastic.