I love thin, but I hate less float... maybe specifically designing some foams or materials that have higher buoyancy pound-for-pound than traditional vest foam. I don't like a "firm" vest (ie Jetpilot impact vests)... I like the feel of neoprene, but I like the buoyancy of foam. A new surface/exterior material that isn't as porous and is more flexible. Something that won't break down in the sun, absorb odors or water, won't stain, and stretches better than neoprene. a synthetic would be awesome.
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