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Gul Junior Flexor Yulex 5/4mm Cheszip Wetsuit - Black/Smoke

Year: 2026 Model: FX1229Gul
NOW$228.16
WAS$253.51
You Save: $25.35 10%
Earn 1,260 Reward PointsRewards Points Worth $4.23 with this Purchase
Model FX1229/C5BKSM

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Part of the Gul Flexor collectionView full collection

The Gul Flexor 5/4mm Yulex Chest Zip Steamer for juniors is designed to keep young surfers warm, flexible and comfortable through every session. Built using eco-friendly YULEX® FSC® and PEFC® certified natural rubber, this wetsuit delivers dependable insulation and stretch while reducing reliance on traditional petroleum-based neoprene.

Created for active kids who spend long days in the water, the Flexor features high-stretch X-Flex external panels that allow unrestricted paddling, swimming and movement. RevoFit 3D pattern technology provides an ergonomic fit that moves naturally with growing bodies, helping young riders stay comfortable whether they’re learning to surf or progressing their skills.

ThermoSpan thermal lining helps retain warmth without adding bulk, while the Micro2Flex internal lining provides a soft feel against the skin and dries quickly between sessions. Blindstitched seam construction combined with G-Tape internal taping in critical zones improves durability and helps reduce water entry.

The Quadrate chest bib zip entry allows easy on and off while reducing flushing during use. A PK #8 low-profile stainless steel zipper ensures smooth, corrosion-resistant performance, while S-Seal wrist and ankle seals and a Pro GlideSkin collar help keep water out and warmth in. Durable PowerTex4 knee pads protect high-wear areas during kneeling, pop-ups and wipeouts.

Ideal for:

  • Kids learning to surf
  • Bodyboarding and beach days
  • Paddleboarding and coastal watersports
  • Cool to mild water conditions

Technology:

  • YULEX® FSC® and PEFC® certified natural rubber construction
  • X-Flex high stretch external panels for improved mobility
  • ThermoSpan thermal lining for enhanced warmth
  • Micro2Flex internal lining for comfort and quicker drying
  • Blindstitched seams with G-Tape internal taping in critical zones
  • RevoFit 3D pattern technology for ergonomic junior fit
  • PowerTex4 knee pads for durability and abrasion resistance
  • True Thickness neoprene for consistent insulation

Key features:

  • 5/4mm junior chest zip full steamer wetsuit
  • Quadrate chest bib zip entry for reduced flushing
  • PK #8 low-profile stainless steel zipper
  • Pro GlideSkin collar for improved seal
  • S-Seal wrist and ankle seals to minimise water entry
  • PowerTex4 knee pads for reinforced durability
  • Seam-free seat panel for improved comfort
  • Integrated key loop for secure storage

Size Guide

UK SizeApprox. AgeChest (cm)Height (cm)Hips (cm)Waist (cm)
T0Age 0–146745143
T1Age 1–248885346
T2Age 2–351995348
T3Age 3–4531045651
JXXXSAge 4–5581165651
JXXSAge 5–6611245853
JXSAge 7–8661326156
JSAge 9–10711406658
JMAge 11–12741467161
JLAge 13–14791547466
JXLAge 14+841627971

How to Measure

Chest: Measure around the fullest part of the chest, keeping the tape horizontal.

Waist: Measure around the narrowest part of the waist (natural waistline).

Hips: Measure around the widest part of the seat.

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