The Mystic Impact Shield is a perfect combination of protection, freedom of movement and value. It is very comfortable with shoulder reinforcements, flex panels, and it offers tons of body core protection and impact support. It also has plenty floatation to assist when you have to swim.
The back has reinforced panels for spine protection. It works with both waist and seat harnesses.
If impact protection with floatation is what you are after, while maintaining flexibility and ease of movement, the Mystic Impact Shield is a great choice.