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The Henderson 5mm Thermoprene Junior Back Zip Full Wetsuit (SKU: A850JB) is a high-performance, cold-to-temperate water jumpsuit engineered specifically for young divers, surfers, and watersports enthusiasts.
Crafted from Henderson’s high-stretch Thermoprene neoprene, this suit delivers 75% more stretch than standard neoprene, making it significantly easier for juniors to don, doff, and move in comfortably while providing heavy-duty thermal insulation.
Get the features and design benefits of more expensive suits in this economically priced jumpsuit ideal for both local waters and exotic destinations.
The Thermoprene Jumpsuit’s effectiveness is based on a contoured fit that helps keeps water exchange to a minimum combined with a superior grade of neoprene for maximum heat retention.
All seams are GBS-glued and blindstitched, which further prevents water seepage and extends suit life.
Creature comforts include spandex trimmed cuffs, a spinepad and an adjustable collar.
Divers seeking a great value will appreciate Thermoprene's balance of performance and price. The material combination delivers greater flexibility and improved features not found in standard neoprene wetsuits, yet at a reasonable cost, perfect for the cost-conscious buyer. Thermoprene is crafted from a high-quality neoprene and a low pill fabric. It has 75% more stretch than standard neoprene, so while it is not as flexible as Henderson's Thermoprene Pro or TherMAXX lines of products, it still boasts significant comfort characteristics. The 180% stretch Thermoprene is noticeably easy to don, pulling over the shoulders and around the torso with less huff and puff than standard wetsuits. Also, the fabric's exterior stands up extremely well to the wear of BC straps and weight belts with its pill/abrasion-resistant exterior laminate.
This 5mm suit is made with uncompromising quality. The suits have seams that are glued and sewn, which seals off stitched areas and drastically reduces water entry. In the full-length jumpsuits, there is a self-sealing spine pad over the zipper to further limit water exchange and to help ease the discomfort of dive tanks. Down below, Freedom Flex kneepads provide a super-tough exterior with great mobility. Each Henderson wetsuit benefits from five decades of design experience. The Thermoprene cut allows for an optimal fit while visually enhancing the diver's physique. Creature comforts include Spandex trimmed cuffs, a spine pad, adjustable collar and leg zippers. Suit has a durable back zipper with zipper tab leash for easy donning and doffing. Suit is black/blue in color and available in multiple sizes.
5mm Thermoprene High-Stretch Neoprene: Built with soft, ultra-flexible neoprene that provides core body warmth in cold-to-temperate waters without restricting movement or causing fatigue.
Junior-Specific Anatomical Cut: Patterned specifically for growing youth body proportions, ensuring a close, comfortable fit that minimizes water circulation inside the suit.
Glued & Blindstitched (GBS) Seams: Sealed seam construction prevents cold water from leaking into the suit, locking in body heat for long hours in the water.
Heavy-Duty Back Zipper: Features a durable, corrosion-resistant PK back zipper with an extra-long pull leash for simple, independent self-donning and doffing.
Freedom Flex Kneepads: Heavy-duty, abrasion-resistant knee guards protect both the suit and the wearer from scrapes against rocks, boards, and boat decks without sacrificing leg flexibility.
Adjustable Collar: Hook-and-loop adjustable neck seal ensures a custom fit that reduces neck chafing and limits water flushing.
Lycra® Trimmed Cuffs: Finished with soft stretch edging at the wrists and ankles to optimize seal strength and improve comfort.
| Product Category | Dive Suits |
| SKU | HEN-A850JB |
| Condition | New |
| Brand | Henderson |
| More Info | TECH SPECS: MANUFACTURER - Henderson Aquatics MODEL / SKU - Thermoprene Junior 5mm Back Zip Full Suit (SKU: A850JB) THICKNESS - 5 mm MATERIAL - Thermoprene High-Stretch Neoprene (75% Stretch) STYLE - Full-Body Jumpsuit (Long Sleeve, Long Leg) SEAM CONSTRUCTION - Glued & Blindstitched (GBS) CLOSURE SYSTEM - Heavy-Duty Back Zipper with Pull Leash FIT TARGET - Youth / Junior Sizing PRIMARY USES - Scuba diving, cold-water swimming, surfing, paddleboarding, snorkeling 5mm Thermoprene High-Stretch Neoprene: Built with soft, ultra-flexible neoprene that provides core body warmth in cold-to-temperate waters without restricting movement or causing fatigue. Junior-Specific Anatomical Cut: Patterned specifically for growing youth body proportions, ensuring a close, comfortable fit that minimizes water circulation inside the suit. Glued & Blindstitched (GBS) Seams: Sealed seam construction prevents cold water from leaking into the suit, locking in body heat for long hours in the water. Heavy-Duty Back Zipper: Features a durable, corrosion-resistant PK back zipper with an extra-long pull leash for simple, independent self-donning and doffing. Freedom Flex Kneepads: Heavy-duty, abrasion-resistant knee guards protect both the suit and the wearer from scrapes against rocks, boards, and boat decks without sacrificing leg flexibility. Adjustable Collar: Hook-and-loop adjustable neck seal ensures a custom fit that reduces neck chafing and limits water flushing. Lycra® Trimmed Cuffs: Finished with soft stretch edging at the wrists and ankles to optimize seal strength and improve comfort. |
| Sizing |
*The size charts are to be used as a reference guide. It is normal if your sizing falls into multiple categories. Â If you still have questions, please feel free to contact us directly.* |
Thanks for the question. A wet suit should fit a little tight out of the water this will help trap a layer of water in the suit letting it warm up. If the suit is to loose water will just flush through the suit not giving the water a chance to warm up.
