- Wetsuit (neoprene swimming wetsuit, min thickness 1,5mm, one piece or set of two, minimum to the shoulders [long John] on the top and to the thighs on the underside [shorts]. Mandatory / athlete’s choice
- Swimming Cap (event’s cap). Mandatory / from the organizer
- Vest Shirt with Bib Number. Mandatory / from the organizer
- Personal Swimming waterproof buoy. Mandatory / from the organizer
- Elastic Rope (6 meters length with clip both sides). Mandatory / from the organizer
- Numbered Tatoo for each pair of athletes. Mandatory / from the organizer
- Swimming googles. Optional / athlete’s choice
- Swimming Paddles. Optional / athlete’s choice
- Swimming Pull Buoy (Pull buoy with a special stabilization to the thighs structure). Optional / athlete’s choice
- Running shoes. Optional / athlete’s choice
- Survival whistle. Optional / athlete’s choice
- Aluminum thermal blanket. Optional / athlete’s choice
- Water. Optional / athlete’s choice - offered by the organizer
- Energy gel or bar. Optional / athlete’s choice - offered by the organizer
- Petroleum jelly (Bazeline) or other lubricant (to avoid friction injury). Optional / athlete’s choice - offered by the organizer
- Plastic basket (Storage athlete stuff). Mandatory / from the organizer
- Numbered Cutting sticker (athlete's handbag marking). Mandatory / from the organizer
