Spacesuit
The spacesuits are mandatory for the leaders to survive on PNF-404, and are also their main defense against hazards and enemy attacks. The suits include a completely clear helmet, typically shaped to accommodate the size of the wearer's head, and has an antenna on top with a light on the end that serves as a beacon, as well as an alternate light source. There is a pack affixed to the back of the suit which presumably contains the life-support system. Each leader has a differently sized and colored suit. In Pikmin, Olimar's suit can only sustain him 30 days before the life-support functions fail.
The suits will spark when damage is taken from an enemy or hazard, and the leader's health will decrease. Any damage taken can be regenerated by going to the next morning, entering or leaving a cave, or by standing in the light of the Dolphin and pressing A / 
in the first game. If a leader is damaged too much, the player can continue the day with the remaining leaders.
When a leader whistles, the antenna will emit rings of light which spread out at the point where the pointer is. Each leader's whistle has a different sound. In Pikmin 3, all the leaders' whistles make the same sound, and a whistle is integrated into their helmets. Both Koppaite and Hocotatian spacesuits, along with add-ons like the Anti-Electrifier, Metal Suit Z and the Scorch Guard can be purchased in the "Star Bazaar Catalogue" as mentioned by Alph, Brittany, and Charlie in Pikmin 3. Supposedly, the spacesuits can have customized color themes, given that all three leaders in Pikmin 3 have a different color palette on their suits.
Gallery
- Capt B and C.png
A whistle can be clearly seen in the front of Captain Charlie's helmet.