Thailand is sending an 842-strong contingent, comprising 550 athletes and 292 officials, making it the biggest team in the 25th SEA Games in Laos
Second is host Laos with 743 contingent members (482 athletes and 261 officials), followed by Vietnam (671), Malaysia(348 athletes and 121 officials), Indonesia（465), Philippines (413), Myanmar (400), Singapore (392), Cambodia (204), Brunei (79) and Timor Leste (77).
The smallest contingents are Brunei and Timor Leste with 30 and 37 athletes respectively.
Brunei will contest in six sports and Timor Leste, seven.
A total of 4,869 athletes who will vie for 370 gold, 370 silver and 539 bronze medals, with athletics being the most popular spors with the participation of 288 athletes, followed by football (280), shooting (169), sepaktakraw (167), swimming (140), karate (130), cycling (116), archery (114), badminton (114), judo (101).
Shuttlecock jiggling, which is popular among the the Indo-china nations, received the lowest participation among the 25 sports offered here.
Shuttlecock jiggling recorded 22 participatants from Cambodia, Thailand, Vietnam, and Laos.
