ION Seek Amp 4/3 Front Zip men 2027

The ION Seek Amp 4/3 Front Zip is a 4/3 mm men's full suit with a front zip. It is ION's top-end range: it combines the brand's most flexible linings, mostly made from recycled materials, with excellent heat retention so you can move without restriction in cool water.

Who it's for

• Kitesurf, wing, windsurf or surf riders who ride in cool water (10 to 18 °C).
• Riders looking for maximum stretch and warmth in a top-end suit.
• Riders who spend many hours on the water in winter and value a suit that dries quickly between sessions.

Features

• 4/3 mm thickness: 4 mm on the torso to retain heat and 3 mm on the arms and legs so you can move more freely.
• Water temperature: ION recommends it for cool water, from 10 to 18 °C.
• Cut: full suit with front zip.
• Hot_Stuff 2.0 and Graphene_Plush 2.0: a very stretchy full-body thermal lining combined with Graphene_Plush 2.0, which is light, tough and heat-conductive; both are made from recycled materials and dry quickly.
• Recycled Max_Flex: a very stretchy outer lining on the chest, shoulders and neck, with 30 % more flexibility, quick drying and maximum comfort.
• Eco_Stretch, a recycled nylon fabric, on the rest of the body for optimum stretch.
• I_Foam: low-density foam with high thermal insulation that incorporates oyster shell powder.
• Glued and blind-stitched seams (Glued Blind Stitch), which extend the life of the suit.
• Flexible heat-sealed seams throughout the inside and reinforced stress points for added flexibility and durability.
• Heat-fused edges on the arms and legs for strength and comfort.
• Seamless shoulders and a low-panel design for great freedom of movement.
• Silicone prints on the front zip, arms and legs that limit water entry.
• One-handed zip: closes to the right and opens to the left.
• Cord with a soft stopper for a custom adjustment of the front-zip flap.
• Reinforced drainage holes on the chest and legs.
• Key pocket with loop.
• Replaceable cord.
• Separate leg straps.
• Composition: 80 % neoprene and 20 % recycled polyamide.

Colour

Available in 900 black and 601 green-seek.

Which size to choose

Official ION size chart. If you're between two sizes, choose the one that best matches your chest and weight: the suit should fit snugly, with no air or water pockets, while still letting you breathe comfortably. The tall sizes (ST, MT, LT, XLT) are for taller people and the short sizes (MS, LS, XLS, XXLS) for shorter people with a broader build. Check the selector for the sizes available in store. More details in our ION wetsuit size chart.

Frequently asked questions

What does 4/3 mean?

It's the thickness of the neoprene in millimetres: 4 mm on the torso, where retaining heat matters most, and 3 mm on the arms and legs so you can move more freely.

What water temperature is it designed for?

ION rates it for cool water, from 10 to 18 °C. How warm it feels also depends on the wind, how long you spend in the water and how much you feel the cold.

What's the advantage of a front zip?

You get in through the chest and the back has no zip, so the suit seals better, less water gets in and the back is more flexible.