Product information updated June 2026
The ION Seek Amp 5/4 Front Zip 2025 is an exceptionally flexible and warm men's fullsuit, designed for total freedom of movement. It features the ultra-stretchy recycled Max_Flex outer lining and a one-handed front zip, making it ideal for winter sessions in cold water (7°C - 12°C).
KEY INFORMATION
Men's 5/4mm Front Zip Wetsuit
What we like
- Recycled Max_Flex: A 100% recycled outer lining on the chest, shoulders, and neck that provides 30% more flexibility, dries quickly, and ensures maximum comfort.
- One-hand front zip: A new zip that opens and closes with a single hand, featuring an adjustable Cordlock.
- Hot_Stuff 2.0 and Plasma_Plush 2.0: Highly flexible thermal lining in the front, combined with a plush, quick-drying fabric on the back for protection against wind chill.
- Silk_Stuff: A smooth, silky inner lining in the shoulders and arms for maximum stretch where freedom of movement is crucial.
- I_Foam: Lightweight foam made with oyster shell powder, offering excellent thermal insulation.
- Glued Blind-Stitched Seams: Features flexible interior taping, reinforced stress points, and fused cuffs and ankles.
- Sweep_Cut: Seamless shoulders and a minimized panel design for unprecedented freedom of movement.
- Responsible manufacturing: Crafted with solvent-free Aqua Alpha glue, limestone neoprene, Eco-Carbon Black, and dope dyeing.
Available sizes
Black (900)
46/XS 48/S 50/M 52/L 54/XL 56/XXL 27/XLS 28/XXLS 94/ST 98/MTBlue (732)
48/S 50/M 52/L 54/XL 27/XLS 28/XXLS 94/STColourways
Disciplines
Ideal Season
Included / Not included
- ✓ Included: ION Seek Amp 5/4 Front Zip Men's Wetsuit
- ✓ Included: Separate leg straps
- ✗ Not included: Neoprene accessories (gloves, boots, hood)
DETAILED DESCRIPTION
Warmth and thermal linings
The Seek Amp delivers both quick-drying warmth and outstanding stretch. A highly flexible Hot_Stuff 2.0 thermal lining is used on the front panels, while the back features soft, quick-drying Plasma_Plush 2.0 for extra protection from wind chill. The shoulders and arms use a thin, silky Silk_Stuff lining for maximum freedom of movement. This 5/4mm suit is designed for cold water winter sessions, rated for temperatures from 7°C to 12°C.
Max_Flex recycled stretch and I_Foam neoprene
Recycled, ultra-flexible Max_Flex is used for the outer lining on the chest, shoulders, and neck, offering 30% more flexibility, quick drying, and maximum comfort. Its diamond-patterned structure improves stretch, and the material sheds water through small channels instead of absorbing it, which speeds up drying time. The rest of the suit uses Eco_Stretch, a durable recycled nylon that doesn't sacrifice performance (black colorway only). The low-density I_Foam traps more air for excellent insulation and flexibility, and now uses oyster shell powder instead of limestone.
Watertightness: front zip and seams
The new front zip is designed for easy one-handed operation, and a soft Cordlock allows you to adjust the front flap with a single hand. Glued blind stitched seams improve durability, while flexible interior taping and reinforced stress points (Maki_Tape 2.0) provide both stretch and strength. Fused edges on the cuffs and ankles add durability and comfort. To keep water out, the suit features watertight silicone prints on the front zip, arms and legs, Seal_Tite on the cuffs and collar, and a Water_Barrier behind the zip.
Fit, Finishes, and Durability
The seamless Sweep_Cut shoulder design and minimal panel layout give you incredible freedom of movement for paddling and turning. Practical features include reinforced Drain_Holes on the chest and legs, a key pocket with a loop, a replaceable drawstring, and removable leg straps. The suit is built using more sustainable materials: fully water-based, solvent-free Aqua Alpha glue, limestone neoprene, Eco-Carbon Black made from recycled tires, water-saving dope dyeing, and oyster shell powder. The material composition is 80% neoprene, 10% polyamide, and 10% recycled polyamide.
ION SIZE GUIDE
Source: ION Water Size Charts. ION men's sizing is based on your height, weight, and chest measurement.
| Size | EURO | Height (cm) | Weight (kg) | Chest (cm) |
|---|---|---|---|---|
| 46/XS | 46 | 169-175 | 54-62 | 88-93 |
| 48/S | 48 | 172-178 | 62-70 | 93-98 |
| 50/M | 50 | 175-181 | 70-78 | 98-103 |
| 52/L | 52 | 178-184 | 78-86 | 103-108 |
| 54/XL | 54 | 181-187 | 86-94 | 108-113 |
| 56/XXL | 56 | 184-190 | 94-102 | 113-118 |
| 27/XLS | 27 | 173-180 | 82-91 | 108-114 |
| 28/XXLS | 28 | 176-183 | 90-98 | 113-119 |
| 94/ST | 94 | 179-184 | 65-74 | 92-98 |
| 98/MT | 98 | 182-189 | 73-82 | 97-103 |
If you're between two sizes, always opt for the larger one. Your wetsuit should fit snugly without restricting your breathing. Short (S) and Tall (T) cuts are available to adjust torso and leg length. Consult the official ION guide
TECHNICAL SPECIFICATIONS
| Specifications | |
|---|---|
| Product | ION Seek Amp 5/4 Front Zip Men's Wetsuit 2025 |
| Product Code | 48252-4466 |
| Thickness | 5/4mm |
| Closure | Front Zip (for easy one-handed operation) |
| Material | 80% Neoprene / 10% Polyamide / 10% Recycled Polyamide |
| Neoprene Type | I_Foam low density, oyster shell powder |
| Outer Lining | Max_Flex recycled (chest, shoulders, neck); Eco_Stretch recycled nylon (black only) |
| Thermal Front Lining | Hot_Stuff 2.0 |
| Back lining | Plasma_Plush 2.0 |
| Shoulders and Arms | Silk_Stuff |
| Seams | Glued and blind-stitched, internal flexible taping, reinforced stress points (Maki_Tape 2.0), fused edges |
| Technologies | Sweep_Cut, Cordlock, Seal_Tite, Water_Barrier, Drain_Holes, Seam_Reinforcement |
| Extras | Key pocket, replaceable draw cord, separate leg straps |
| Temperature | 7°C - 12°C (45°F - 54°F) |
| Available sizes | 46/XS, 48/S, 50/M, 52/L, 54/XL, 56/XXL, 27/XLS, 28/XXLS, 94/ST, 98/MT |
| Colorways | 900 black, 732 blue-nights |
| Disciplines | Wing Foil, Kitesurf, Windsurf, Surf |
| Season | Winter |
FAQ
What size should I choose for the ION Seek Amp 5/4?
To find your perfect fit, refer to the ION size guide above, which is based on height, weight, and chest circumference. The black color offers the widest range of sizes (from 46/XS to 56/XXL), including Short (27/XLS, 28/XXLS) and Tall (94/ST, 98/MT) cuts. Remember, a wetsuit that is too loose will allow more water in, reducing its thermal efficiency.
Is the Seek Amp 5/4 suitable for wing foil and kitesurf?
Absolutely! Its recycled Max_Flex lining and seamless Sweep_Cut shoulders provide exceptional freedom of movement, making it ideal for wing foil, kitesurf, windsurf, and Surf. With its 5/4mm thickness and thermal linings, this wetsuit is perfectly suited for winter sessions in cold waters (7°C - 12°C).
What's the difference between the black and blue colorways?
Both colorways share the same advanced technologies. The black colorway also incorporates Eco_Stretch, a recycled nylon material, on the rest of the suit and offers the most comprehensive range of sizes (including 46/XS, 56/XXL, and 98/MT). The 732 blue-nights colorway is available from 48/S to 54/XL, with 27/XLS, 28/XXLS, and 94/ST cuts.
Why buy from GlissEvolution?
GlissEvolution has over 20 years of watersports expertise. Our team of passionate riders tests all our gear on the local spots of La Baule and Pornichet. We provide responsive, France-based after-sales support, offer free shipping on orders over €150, and you can pick up your order from our shop in Pornichet.
► Need some advice?
GlissEvolution: 2c avenue du Gulfstream, 44380 Pornichet (Loire-Atlantique)
09 62 64 74 77 | WhatsApp: 07 83 28 39 94 | Tuesday to Saturday, 10am-1pm / 3pm-7pm
Test center available by appointment
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