The company - which has endorsers including Formula 1 driver Jenson Button, London 2012 gold medallist Alistair Brownlee and celebrity chef Gordon Ramsay - secured the package to increase stock and invest in expanding.
HUUB is set to have a £2 million turnover this year and is poised to start 2016 with a record number of pre-orders from distributors and wholesalers.
Managing Director at HUUB, Dean Jackson, said: "HUUB has successfully filled a gap in the market by offering a premium product that delivers a genuine performance improvement for athletes of all abilities.
"During the development of the triathlon as a sport over the last few decades, wetsuits have actually evolved very little, aside from the development of more flexible and buoyant neoprene materials. HUUB has capitalised on this and I’m delighted with the ongoing success and expansion of the firm."