Choosing a canyoning wetsuit

Ask experienced canyoneers what most improved their early days in the sport and a surprising number will say the same thing: a better wetsuit. Cold is the quiet enemy of a good canyon day — it saps strength, dulls judgement and turns a beautiful descent into an endurance test. Getting the suit right matters more than almost any other gear choice.

Thickness: warmth versus mobility

Most canyon water is cold, even in summer, so 5 mm is a sensible baseline, with thicker suits for alpine snowmelt or dark slots that never see sun. But thickness is a trade-off: more neoprene means more warmth and less mobility, and canyoning demands a lot of movement — high steps, swimming, scrambling. The art is matching the suit to the water you will actually be in.

Why canyon suits are different

A canyon wetsuit is built tougher than a surf or dive suit because it spends the day dragging across abrasive rock. Expect reinforced knees, seat and elbows, often a two-piece design (a long john plus a jacket) for warmth and flexibility, and frequently a hood. The reinforcement is not a luxury — an unprotected suit can be shredded in a single season of rappels and slides.

• 5 mm as a baseline; thicker for cold, alpine or sunless canyons.
• Look for reinforced knees, seat and elbows.
• A two-piece suit adds warmth and flexibility.
• Add neoprene socks, gloves and a hood as the water demands.

Fit is everything

A wetsuit works by trapping a thin layer of water against your skin and letting your body warm it. A loose suit flushes that warm water out with every movement and leaves you cold; a too-tight suit restricts the breathing and movement a long canyon demands. Try suits on, move in them, and prioritise a snug-but-mobile fit over a bargain.