Musto Championship Men's 3 mm Long John - Deep Ocean

The Musto Men’s Championship 3mm Long John – Deep Ocean is a high-performance wetsuit built for serious sailing in 12–18°C conditions - ideal for Irish coastal waters, changeable weather, and long days on the water. Made from high-stretch neoprene, it features body-mapped panelling that carefully balances warmth where you need it most with flexibility where you move the most.

For enhanced comfort during active manoeuvres, 1mm neoprene at the ankles improves mobility and reduces restriction when your muscles are working hard. A thermal lining boosts heat retention, while stretch panels and a crotch gusset support full freedom of movement for fast tacks, trims and dynamic sailing.

Durability is built in too, with abrasion-resistant reinforcement fabric on the seat (and knees) to handle high-wear contact points. Practical details make it even more dependable: a relief opening adds convenience without needing to undress, and laser-cut drainage holes at the lower leg prevent water pooling. To finish, Musto includes adjustable leg length with ready-to-cut bar tacks for a customised fit.

Features

• High Stretch Neoprene
• Body-mapped panelling for warmth + flexibility balance
• Reinforcement fabric on the seat and knees for durability
• Stretch panels for optimised fit
• Flatlock seams for extra comfort
• Adjustable leg length with ready-to-cut bar tacks
• Relief opening for convenience
• Laser-cut holes at the back of the lower leg for drainage
• Body-mapped thermal lining for improved heat retention
• Gusset in the crotch for freedom of movement

Specifications

• Fabric: Neoprene
• Thickness: 3mm (main body)
• Ankles: 1mm neoprene for comfort and mobility
• Recommended Use Temperature: 12–18°C
• Construction: Flatlock seams
• Fit Adjustment: Ready-to-cut bar tacks (leg length)
• Drainage: Laser-cut lower leg holes
• Colour: Deep Ocean

Care Instructions

• Wash with similar colours
• Do not use fabric softener
• Do not use biological washing detergent
• Wash inside out

Size Chart