2025 ION Element 4/3 Overknee Long Sleeve Back Zip Wetsuit (Men)

Model year: 2025. The ION Element 4/3 Overknee Long Sleeve Back Zip Wetsuit for men is designed for water enthusiasts who value simplicity while enjoying the ocean. Supple, stretchy and robust, the Element line incorporates several features from ION’s more technical range.

Temperature range

ION rates this wetsuit for water temperatures of 14°C to 20°C (57°F to 68°F).

Key features

• Warmth: plush Hot_Stuff 2.0 thermal lining on the back and torso prevents wind chill
• Stretch: thin, smooth Silk_Stuff lining at the chest, shoulders and arms for better stretch and comfort
• Seams and durability: glued blind stitching and flatlock seams, with reinforced stress points
• Fit: easy, double-side entry through the back zip
• Overknee leg length and long sleeves

The technology

• Hot_Stuff 2.0: a plushier feel from larger loops that trap more air for heat insulation. ION says it is the stretchiest thermo lining in its entire range.
• Silk_Stuff: a silky interior lining that feels comfortable against bare skin and, despite its cozy look, is very durable and flexible.
• Seam_Reinforcement: all stress points are reinforced and secured with melco tape on the inside for a longer seam lifespan.
• Water_Gate: an internal neoprene panel seals off the back zipper, acting as a barrier that minimizes the water rushing into the wetsuit.
• Drain Holes: prevent water buildup inside the wetsuit, and are fixed securely from the inside so they do not widen.
• Sunglasses Loop: a small webbing loop on the neck for attaching the safety line of watersport sunglasses.
• Glued Blind Stitch: the panels are first glued and then stitched halfway through the neoprene with a curved needle, which prevents water from entering.

Specifications

ION size chart

WARNING: cancer and reproductive harm – www.P65Warnings.ca.gov

Questions we get asked

What water temperature is the Element 4/3 for?

ION rates it for 14°C to 20°C (57°F to 68°F).

What does “overknee” mean?

It refers to the leg length: the legs extend over the knee rather than stopping above it.

How do I get into a back zip wetsuit?

ION describes the Element’s entry as easy, with double-side entry through the back zip. The internal Water_Gate panel seals off the zipper from the inside.

What is Hot_Stuff 2.0 lining?

ION’s thermal lining with larger loops that trap more air for heat insulation. ION calls it the stretchiest thermo lining in its range, and it is used on the back and torso of this suit.

Which model year is this?

This listing is the 2025 model, ION item number 48252-4448.