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Men's O'Neill 7mm J-Type FSW Hooded Wetsuit Diving

Men's O'Neill 7mm J-Type FSW Hooded Wetsuit Diving
Men's O'Neill 7mm J-Type FSW Hooded Wetsuit Diving
Men's O'Neill 7mm J-Type FSW Hooded Wetsuit Diving
Men's O'Neill 7mm J-Type FSW Hooded Wetsuit Diving

Men's O'Neill 7mm J-Type FSW Hooded Wetsuit Diving

Reg Price $449.95
Item# 2375
(34% Savings)


Shipping/Delivery Estimates
Thickness: 7mm
Temp: 41°F & Up
Activities: Dive, Multi
Seams: Fluid Seam Weld
Length: Full
Wrist/Ankle: Plasma Wrist and Ankle Seals
Internal: Firewall
Blue:Ultraflex DS neoprene
Material Details

Product Description

7mm Mens Semi Dry Wetsuit Hooded Scuba Diving Wetsuit
The Oneill 7mm Mens Hooded Wetsuit J-Type Scuba Diving Wetsuit is 100% waterproof! The 7mm J-Type FSW wetsuit offers the ease of the J-type entry/closure system with the minimal bulk, seal, and convenience of a one-piece hooded full suit. The J-Type name comes from the integrated "John" interior. You have 12mm of protection in the core of the wetsuit (Chest & Back. This Oneill wetsuit was designed for use in frigid waters, and rated for 5 degrees Celsius (41 degrees Fahrenheit), the entire wetsuit boasts 7mm of super light, warm, and durable Ultraflex DS neoprene. The neoprene fabric is strong, stretchy, and supple, behaving like a second skin in the water. Adding additional warmth exactly where it is needed, the wetsuit also has a built-in, full-torso 5-millimeter envelope of Firewall fabric.

Thanks to O'Neill's double-sided Fluid Seam Weld and stitchless seam construction, the suit is 100 percent sealed. O'Neill welds the neoprene layers of the suit together without stitching so that water cannot leak through tiny holes left in the fabric. The Code Red blackout zipper has an exclusive urethane-coated webbing that reduces water entry. Additionally, the suit has strong Glideskin O'Ring Cuffs, super strong leg seals, and a virtually water-tight Super Seal Neck making this wetsuit a top performer in frigid waters.

Comfortable to wear, the 7-millimeter J-Type FSW wetsuit has a TFX torso flex panels providing ease of movement throughout the torso while maintaining the core insulation. The wetsuit also has minimal seam design for optimum range of motion and zero chafing, and strong but flexible D-Tox kneepads. The 7-millimeter J-Type FSW Wetsuit is a great choice for serious divers who are looking for an alternative to drysuits and would like to avoid the bulk and potential for leaking of traditional two-piece suits.

Additional Features

  • Torso: Firewall
  • Arm/Leg: Ultraflex DS
  • Hood: Firewall
  • Stitchless Double Fluid Seam Weld
  • Code Red Zipper
  • 12-millimeter core insulation
  • JĐType Entry/Closure System
  • Full Torso Firewall Insulation Envelope
  • 100 percent sealed
  • D-Tox Kneepads
  • Glideskin O'Ring Cuffs
  • Jon Barrier
  • Minimal Seam Design
  • Super Seal Neck
  • TFX Torso Flex

Warranty Information

This product has a limited warranty of 12 months.
Learn More

Size Chart

Height Weight Chest Waist Hips Neck
5'8-5'10 135-155 36.5 - 38.5 29-31 34-36 15
5'9-5'11 150-170 38.5 - 40.5 30.5 - 32.5 35.5 - 37.5 15.5
5'7.5 - 5'9.5 160-180 40.5 - 42.5 32.5 - 34.5 37.5 - 39.5 16
5'10-6'0 170-190 40.5 - 42.5 32.5 - 34.5 37.5 - 39.5 16
5'8.5 - 5'10.5 180-200 42.5 - 44.5 34.5 - 36.5 39.5 - 41.5 16.5
5'11-6'1 190-210 42.5 - 44.5 34.5 - 36.5 39.5 - 41.5 16.5
6'0 - 6'2 210-230 44.5 - 46.5 36.5 - 38.5 41.5 - 43.5 17



How to Select the Right Wetsuit for Your Sport

How to Select a Wetsuit

Intro to Selecting a Wetsuit

When your wetsuit acts as your ‘second skin’, it’s important to do thorough research before investing in this considerable purchase. But how do you choose the right wetsuit? There are a lot of important factors to consider, such as whether you need a wetsuit primarily for swimming, surfing, diving, or multiple sports. While some wetsuits can cross-over into other activities, we recommend investing in a wetsuit that is specific to your main sport. Our guide below is designed to help you overcome any decision-making anxiety, so you can quickly determine your needs and identify your ideal wetsuit.

How do wetsuits work?

A wetsuit is made of neoprene to provide you warmth and protection when doing your favorite water sports. Wetsuits slow down heat loss by trapping a thin layer of water between your body and the wetsuit. While you still get wet, your body heats up the thin layer of water trapped against the body to nearly body temperature. A wetsuit should fit properly. The thicker the neoprene is in the suit, the warmer the wetsuit will be. Research the water temperature in the region where you will primarily use your wetsuit. If temperatures are cold consider wearing neoprene boots, gloves and hoods.

Wetsuit Temperature Guide

Temperature °F

Wetsuit Thickness

Wetsuit Type

Seal Type

80°-74° N/A Rashguard  N/A
73°-66 .5 mm - 1mm Neoprene Top / Shorty N/A
65°-58 2 mm - 3/2 mm Long Sleeve Short Suit Full Suit Flatlock
58°-55° 3/2 mm - 4/3 mm Full Suit + Boots Sealed 
54°-49 4/3 mm - 5/4/3 mm Full Suit + Boots + Gloves + Hood Sealed and Taped 
49°-43° 5/4 mm - 5/4/3 mm Full Suit + Boots + Gloves + Hood Sealed and Taped 
42° and below 6/5 mm // 6/5/4 mm Full Suit + Boots + Gloves + Hood Sealed  and Taped 

Need A Wetsuit For Swimming?

If you plan on swimming a lot or doing laps in your wetsuit, we recommend a Triathlon wetsuit. Triathlon wetsuits are specifically designed for swimmers, with more stretch than a typical surfing or diving wetsuit so you benefit from unrestricted movement while swimming. The extra stretch is due to a different cut, materials, and design than conventional wetsuits.

How Does A Triathlon Wetsuit Work?

Triathlon wetsuits have panels with different thickness and materials (buoyancy) to optimize the swimmer’s positioning. (Note: These wetsuits are not personal flotation devices nor are they intended to protect against sinking or drowning). Additionally, triathlon wetsuits rarely have nylon lament on the exterior so they glide more efficiently in the water with less drag. While these features make a triathlon wetsuit very stretchy, they also make it very sensitive to tearing.

Need A Wetsuit For Surfing?

You may not realize it, but surfing involves a lot of arm paddling. Consider a wetsuit that has stretchier materials in the upper body (shoulders, arms) or in the entire body of the wetsuit. This will reduce the upper body fatigue that results from repetitive motion. (Insert wetsuit diagram here) In this wetsuit example, there are stretch materials in the upper body of the wetsuit to improve your surfing comfort.

Need A Wetsuit For Diving?

The two most important things to consider when determining the best diving wetsuit are: a) Water temperature – If you are diving in colder waters, consider a cold water diving wetsuit. These wetsuits are specifically designed to withstand the compression that results from going deep underwater. They are also typically made of materials that help to maximize your body’s thermal protection. b) Water depth – you may be surprised to learn that the enemy of all wetsuits is depth, not water temperature. As you descend, your neoprene wetsuit compresses very quickly - in some cases to half of its surface thickness within the first 35 feet. So to protect your body and your gear, consider the diving depths you anticipate undertaking before determining the best cold water wetsuit for your needs.

How Does A Cold Water Diving Wetsuit Work?

When you descend down, you experience both water and air pressure. Since water is much denser than air, the pressure increases rapidly as you descend further. With deeper diving come greater wetsuit compression. This compression is actually the bubbles within your neoprene wetsuit -- which act as your insulation -- compressing due to the pressure. So as the wetsuit compresses, it loses thermal protection. While some wetsuits compress more than others in deeper water, the differences are not huge. As you might expect, stiffer, heavier neoprene wetsuits generally compress less than soft stretchy ones.


• At a depth of 34 feet in fresh water, the diver experiences 2 atmospheres of pressure (1 from air pressure, 1 from the 34 feet of water). For every additional 34 feet that the diver descends, he is under an additional atmosphere of pressure. As you can imagine, this is a lot of pressure on a wetsuit!
• At a depth of 90 feet, your 7mm cold-water wetsuit can get very thin depending on the type of neoprene within your diving wetsuit.

Can You Use A Triathlon Wetsuits To Do Multiple Sports?

While a triathlon wetsuit would seem like the perfect wetsuit for multiple sports it, we would strongly recommend against it. For example, if you wore a triathlon wetsuit to go scuba diving, the shoulder straps on your BCD (buoyancy compensator) would likely tear the wetsuit’s neoprene. Other basic actions such as rubbing against coral or the back of a boat as you board, or even kneeling on the ground, would potentially tear a triathlon wetsuit. Due to these high-rip risk factors, we recommend using your triathlon wetsuit for swimming activities only.

When Looking For A Multi-Sport Wetsuit Here Are Some Factors To Consider: 1. What activity will you be spending most of your time doing in the wetsuit? 2. What is your budget? 3. What will be the most active areas of the wetsuit?


Choosing a wetsuit is easy once you determine your primary sporting use: - Do you need a swimming wetsuit? A triathlon wetsuit will give you maximum flexibility with minimal drag. - For surfing, go with a surfing wetsuit that has extra stretch in the upper body – it will greatly improve your comfort. - Are you a diver? A diving wetsuit is your best bet – but the final choice is further impacted by the type of diving that you anticipate doing: cold water or deep dive. - For multiple sport we do not recommend a triathlon wetsuit (even though it seems contradictory)

Any questions?

Our friendly wetsuit experts here at Pleasure Sports (many who would live in a wetsuit if given half a chance!) would be happy to discuss your specific needs and help you find your best wetsuit.