--- product_id: 3447188 title: "O'Neill Men's Epic 4/3mm Back Zip Full Wetsuit" brand: "o'neill" price: "$578.37" currency: USD in_stock: true reviews_count: 8 category: "O'neill" url: https://www.desertcart.us/products/3447188-oneill-mens-epic-4-3mm-back-zip-full-wetsuit store_origin: US region: United States of America --- # Ultra-stretch FluidFlex neoprene for max flexibility Backzip system with water-tight seal 4/3mm neoprene thickness for optimal warmth O'Neill Men's Epic 4/3mm Back Zip Full Wetsuit **Brand:** o'neill **Price:** $578.37 **Availability:** ✅ In Stock ## Summary > 🌊 Gear up, glide in, and never miss a wave! ## Quick Answers - **What is this?** O'Neill Men's Epic 4/3mm Back Zip Full Wetsuit by o'neill - **How much does it cost?** $578.37 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/3447188-oneill-mens-epic-4-3mm-back-zip-full-wetsuit) ## Best For - o'neill enthusiasts ## Why This Product - Trusted o'neill brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Cold? Not a Chance:** Wind-resistant FluidFlex Firewall panels trap heat and block chill for all-day comfort. - • **Move Like You Mean It:** Ultra-stretch FluidFlex neoprene delivers unmatched flexibility for peak performance. - • **Stay Warm, Stay Ahead:** 4/3mm neoprene locks in heat so you conquer cold waters effortlessly. - • **Effortless Entry & Exit:** Backzip design with a water-tight seal means no struggle getting in or out. - • **Built to Last, Designed to Perform:** Blind-stitched, triple-glued seams keep water out and durability in. ## Overview The O'Neill Men's Epic 4/3mm Back Zip Full Wetsuit is engineered with premium ultra-stretch neoprene and a backzip system that ensures easy entry and a water-tight seal. Featuring blind-stitched, triple-glued seams and wind-resistant FluidFlex Firewall panels, it offers superior warmth, durability, and flexibility—perfect for surfing, diving, and all water sports in chilly conditions. ## Description Engineered for Men who want warmth in a suit that seals out water well for any water activity, the O’Neill Epic Back Zip Wetsuit combines advanced features with everyday reliability. Built using our high-performance stretchy neoprene, offering an excellent range of motion and lasting comfort, while the FluidFlex Firewall lining traps heat to keep your core warm in chilly conditions. The back zip entry system ensures easy on and off, while water-tight seams keep water out and increase durability. With features like the Double Super Seal Neck, Krypto Armor knee pads, and minimal seam design for flexibility, the Epic delivers outstanding performance, warmth, and value for water adventurers in all conditions and for all levels of experience. Review: Perfect wetsuit! - Perfect! Review: Great fit, great performance, one minor annoyance - XXL was perfect for 230lbs/6ft tall with a big belly/chest. I've never had a 4/3, but have decades of experience using thiner wetsuits and neoprene gear for different activities. Most of my stuff is around 2mm. It's crazy how warm 4mm is - I used this suit in 50-55F water and I couldn't even tell I was in the water. Only flaw with the product is the neck velcro easily gets stuck inside the suit and is very difficult to get un-stuck once the suit is on. I know what you're thinking: "they all do that." Not like this; the velcro absolutely welds itself deep inside your shoulder, even if you try to be careful about not dragging the flap in. This annoyance is worth it for the price; still a great value. No fault of the product, but the suit was sent in a box that was literally 6ft long, 3 inches deep, and around 30 inches across. This is obviously absurd, and might be a consideration depending on where you are sending the suit. Also, the suit had clearly been tried on and returned, which is a little gross, but fine with me. ## Features - Ideal Value Driven Wetsuit; Perfect For Surfing, Diving, Paddle Sports, Lake Activities, And Beach Days - Backzip System Provides Easy Entry And Exit With A Water Tight Seal - Ultra Stretch Neoprene: Incredibly Soft Premium Material Has Superior Feel, Flexibility, And Elevates Performance - Seams Are Blind Stitched And Triple Glued (GBS); Keeping Water Out And Increases Durability Of The Product - Wind-Resistant FluidFlex Firewall Panels Provide Extra Insulation And Protection Against The Cold - Small (Chest: 37.5"-39", Waist: 29.5"-31", Height: 5'10") ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00CAHMBJY | | Age Range Description | Adult | | Best Sellers Rank | #39,414 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #25 in Full Wetsuits | | Brand Name | O'NEILL | | Chest Size | 38 Inches | | Closure Type | Zipper | | Color | Black/Black/Black | | Customer Reviews | 4.4 out of 5 stars 1,182 Reviews | | Fabric type | Neoprene Rubber | | Global Trade Identification Number | 00603731974031 | | Included Components | Wetsuit | | Item Thickness | 4 Millimeters | | Item Type Name | Wetsuits | | Item Weight | 16 ounces | | Manufacturer | O'Neill Wetsuits | | Manufacturer Part Number | 4212-A05 | | Material Type | Neoprene | | Model Number | 4212 | | Origin | Imported | | Size Map | SM (5'8"-5'10", 135-155 lbs) | | Sleeve Type | Long Sleeve | | Sport Type | Kitesurfing, Snorkeling, Surfing, Swimming, Wakeboarding | | Temperature Rating | 18 Degrees Celsius | | UPC | 603731974031 | | Unit Count | 1.0 Count | | Waist Size | 31 Inches | | Warranty Description | GENERAL WARRANTY INFORMATION AND POLICY: If the product is found to be defective under normal use and proper care, O'Neill Wetsuits will repair or replace, at O'Neill Wetsuits' option. This decision to replace or repair is made by the O'Neill Wetsuit Warranty Department after receipt of the defective product. At no time does O'Neill Wetsuits offer refunds. For more information, go to: https://us.o… | ## Images ![O'Neill Men's Epic 4/3mm Back Zip Full Wetsuit - Image 1](https://m.media-amazon.com/images/I/51kZTbK5QnL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: The zipper stuck on first order. The replacement was severely creased and missing taped support at sowed corners. Why?** A: Return it for new one **Q: I'm 6'4" and in the 180-200lb range--I've checked the size chart and it says LT would be a fit for me, can anyone vouch for that?** A: I'm also 6'4, 220lbs. Should fit you perfectly! **Q: i have an oneill epic for women. it doesn't seems warm enough for 59degrees and below. is ithis warmer??** A: I swim and snorkel blooming for agates in Lake Superior in upper MI with mine. Keeps me warm in Lake Superior. **Q: Does the wetsuit have a bat hood?** A: No hood zips up the back ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect wetsuit! *by D***M on March 22, 2026* Perfect! ### ⭐⭐⭐⭐⭐ Great fit, great performance, one minor annoyance *by C***R on November 1, 2023* XXL was perfect for 230lbs/6ft tall with a big belly/chest. I've never had a 4/3, but have decades of experience using thiner wetsuits and neoprene gear for different activities. Most of my stuff is around 2mm. It's crazy how warm 4mm is - I used this suit in 50-55F water and I couldn't even tell I was in the water. Only flaw with the product is the neck velcro easily gets stuck inside the suit and is very difficult to get un-stuck once the suit is on. I know what you're thinking: "they all do that." Not like this; the velcro absolutely welds itself deep inside your shoulder, even if you try to be careful about not dragging the flap in. This annoyance is worth it for the price; still a great value. No fault of the product, but the suit was sent in a box that was literally 6ft long, 3 inches deep, and around 30 inches across. This is obviously absurd, and might be a consideration depending on where you are sending the suit. Also, the suit had clearly been tried on and returned, which is a little gross, but fine with me. ### ⭐⭐⭐⭐⭐ Warm suit. Doesn't let cold water flush through the zipper ! *by A***R on April 7, 2024* I'm 5'11" 205lbs kinda stocky. I've sometimes have to wear a XXL because of my shoulders & chest but then those suits are loose in the legs on me. This fit me perfect ! I was concerned that it doesn't have a bat wing under the zipper & usually this means cold water runs down my back " But that's not the case with this suit" zipper holds out the water really good! It's got fleece inside which keeps you warm in cold water. Great suit for the $ also they packaged it nice & it didn't come all wrinkled. I've had new suits come wrinkled from other suppliers as they put the suit in a huge box & it just flopped around during shipping. ## Frequently Bought Together - O'Neill Men's Epic 4/3mm Back Zip Full Wetsuit - O'Neill Men's Reactor-2 3/2mm, Back Zip, Full Wetsuit - XUKER Water Gloves, 3mm & 5mm Neoprene Five Finger Warm Wetsuit Winter Gloves for Scuba Diving Snorkeling Surfing --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/3447188-oneill-mens-epic-4-3mm-back-zip-full-wetsuit](https://www.desertcart.us/products/3447188-oneill-mens-epic-4-3mm-back-zip-full-wetsuit) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-07*