Albion have clinched a lucrative, long-term kit supplier deal with Nike.
The world's leading sporstwear brand is replacing Errea, Albion's kit partners for the last 15 years.
The multi-year agreement with Nike begins on June 1.
Albion's first team, under 21s, women's and youth teams will be wearing the new kit when they report back for pre-season training at the new training ground and academy in Lancing in the summer.
Chief executive Paul Barber said: "In securing a long term agreement with Nike, we are delighted to announce another record-breaking partnership for the club. Nike is the leader in football and a huge global brand, which will help lift our club's profile as we continue to develop.
"The new deal represents a significant increase on our existing commercial arrangement, and we are looking forward to working closely with Nike to give our supporters a new kit and exciting product range.
"Errea, our long-standing and outgoing kit partner, has done an excellent job for the Albion since 1999. On behalf of everyone at the club and our fans, I'd like to thank Errea for their wonderful support."
Nike will produce a new Albion kit for 2014-15, to be unveiled later this year, and a range of training and leisurewear.
Albion’s head of commercial Simon Williams said: "Fans will be delighted to hear of the partnership between Albion and Nike and that we will also retain exclusive distribution via our stores and retail website."