What equipment does canoe slalom require?
Officials' detail · The run · 1 of 1A single kayak or canoe must be at least 3.50 metres long, 0.60 metres wide and 9 kilograms. Every athlete must wear a helmet fastened under the chin and a buoyancy aid. The boat must be unsinkable, with a grab handle at each end, and rudders are banned.
How it works
- K1 and C1: minimum length 3.50 metres, minimum width 0.60 metres, minimum weight 9 kilograms.
- C2: minimum length 4.10 metres, minimum width 0.75 metres, minimum weight 15 kilograms.
- No rudders: "Rudders are prohibited on all boats."
- Unsinkable: "All boats must be unsinkable", with a handle at each end no more than 30 centimetres from the bow and the stern.
- Helmet and buoyancy aid: "Each athlete must wear a helmet with a strap fastened under the chin and a buoyancy aid."
- The buoyancy aid: foam only, with no inflating devices. At a competition it must float a 6.12 kilogram steel weight.
- Registered kit: helmets and buoyancy aids must be on the ICF's register for the year.
- After the finish: at the higher levels the organisers spot-check buoyancy aids and boats after the finish.
- Bibs: a number on the front and the back. In a double both athletes wear one.
- Not conforming: an athlete who races with a boat or equipment outside the rules is disqualified for that run.
The glossary has the boat specifications entry, the kayak, the canoe and the spray skirt.
Tricky cases
Is there a maximum length for a slalom boat?
No. The rules read for this page set minimum lengths and widths only.
Can a paddler wear an inflatable life jacket?
No. The buoyancy aid must rely on foam, and inflating devices are not accepted.
A boat is found to be under weight after the run. What happens?
The athlete is disqualified for that run. Loose items and water are removed before weighing.
Can a coach talk to the paddler by radio during the run?
No. Directions by radio are outside assistance, which brings disqualification for the run.
Why the rule exists
The minimum sizes stop boats from shrinking until they can be spun on the spot, and the minimum weight stops a race to build the lightest hull. The safety rules assume the worst case: a paddler out of the boat in fast water, who needs to float and to have something on the boat to hold.
Where it differs
| Where | What changes | Source |
|---|---|---|
| ICF competitions | The sizes and registered safety kit above | SL 3.2; SL 3.5; SL 3.6 |
| Other international competitions | Any white-water boat that meets the safety rules may be used | SL 3.2.3 |
| Kayak cross | Mass-produced plastic boats, at most 2.75 metres long and at least 18 kilograms | SL 16.1 |
From the rule book
International Canoe Federation, Canoe Slalom Competition Rules 2025, Articles 3.1 to 3.8, 10.16.1 and 10.16.3. Checked 14 October 2026. Official document: ICF Canoe Slalom Competition Rules (PDF).