Youth wetsuit for regular sessions
O'Neill Youth Epic 4/3 Chest Zip Full is a youth neoprene wetsuit designed for regular use in cooler conditions. It incorporates several features found in O'Neill's higher-end wetsuit ranges while maintaining a practical and durable construction.
The suit is now fully double lined, increasing durability and overall performance during frequent use.
UltraFlex and freedom of movement
The suit is built with UltraFlex, a flexible neoprene designed to support natural body movement in the water.
Strategic Seamless Paddle Zones reduce seam placement in areas where the arms move most, helping minimize restriction during paddling and other dynamic upper-body movements.
F.U.Z.E. Closure
The F.U.Z.E. Closure (Front Upper Zip Entry) uses a front-entry zipper positioned across the upper section of the wetsuit.
This design avoids a long back zipper and helps maintain greater freedom of movement through the upper body.
Double Super Seal Neck
The Double Super Seal Neck creates additional sealing around the neck to help reduce water entry.
Combined with the Glued and Blindstitched Seams, it helps limit water exchange during the session.
Glued and Blindstitched Seams
The panels are joined using glued and blind-stitched seams. The stitching does not pass completely through the material, helping reduce water penetration through the panel connections.
Reinforcement and practical details
The knees are protected with Krypto Knee Padz, reinforcing one of the highest-wear areas of the wetsuit.
Hand-Cuff Stitch Sleeve Anchor reinforces the sleeve ends, while the External Key Pocket with Loop provides a secure place for a key.
Product highlights
Wetsuit thickness 4/3 mm
This model has 2 foam thicknesses of 3 and 4 mm. The torso is the most exposed to cooling, so the wetsuit is thicker here
Zip on the front
The chest zip is positioned at chest width, so it is short and sits high, which allows it to let in less water and maintain comfort for longer during the session
Flexibility
The neoprene material used in production, along with the technologies applied, makes this model of wetsuit exceptionally flexible. As a result, it fits the body perfectly, adapting ideally and ensuring complete freedom of movement.
Robustness
The wetsuit is designed for durability during extreme adventures on the water. The construction and materials used are extremely durable, guaranteeing long-lasting use
Features

F.U.Z.E. Closure - Chest Zip
The Front Upper Zip Entry uses a freely sliding zip slider and a panel with drainage holes to ensure dryness and freedom of movement

Flatlock Stitched Breathable Seams
A strong flat stitch that works by overlapping the neoprene panels and sewing them together, providing comfort, breathability and strength. Not intended for freezing conditions/ Flatlock stitch is mainly used for warm-water wetsuits

Double Super Seal Neck
Fully adjustable glideskin seal. Comfortable and waterlight

Key Pocket
A key pocket created for your comfort. It means you won't have to worry about what to do with them

Krypto Knee Padz
Ergonomic knee protection. High-strength, abrasion-resistant material on knees for added protection

Ultraflex
High-performance, super-stretch neoprene with a durable outer shell that resists stretching and Velcro hooking. In addition, it is soft and provides a sense of flexibility and freedom of movement

Hand-Cuff Stitch Sleeve Anchor
Additional tapered cuffs with elastic wrist and ankle seals
Suggested wetsuit temperature chyart

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