The O'Neill Epic 4/3mm Back Zip Full Wetsuit is a versatile and performance-driven suit designed for surfers seeking high-end features at an affordable price. Constructed with 100% UltraFlex neoprene, it offers exceptional flexibility and comfort. The FluidFlex Firewall lining provides added warmth, while the double seal neck closure and lumbar seamless design enhance fit and durability. With its re-engineered covert blackout zip and strategic paddle zones, this wetsuit ensures ease of movement and minimal water entry, making it ideal for cold-water sessions

Features

Tech Specs

Ratings & Reviews

Questions & Answers

O'Neill

O'Neill Epic 4/3mm Back Zip Full Wetsuit

$ 229.95 ~~$ 229.95~~

Color : Black/Ultra
Material
- Polyester / Polyester Blend
Sleeve Length
- Long Sleeve
Apparel Size
Gender
- Men's
Gender
- Women's
Gender
- Unisex
Brand
- O'Neill

Size Chart

Add to cart

Color: Black/Ultra

Material: Polyester / Polyester Blend

Sleeve Length: Long Sleeve

Gender: Men's , Women's , Unisex

Brand: O'Neill

O_Neill Men's Wetsuits Size Guide

Size	Height	Weight	Chest	Waist
XS	5'7" - 5'9"	125 - 140	36.5" - 37.5"	28.5" - 29.5"
S	5'8" - 5'10"	135 - 155	37.5" - 39"	29.5" - 31"
ST	6' - 6'2"	145 - 165	37.5" - 39"	29.5" - 31"
MS	5'6.5" - 5'8.5"	146 - 165	39" - 41"	31" - 33"
M	5'9" - 5'11"	155 - 170	39" - 41"	31" - 33"
MT	6'1" - 6'3"	160 - 180	39" - 41"	31" - 33"
LS	5'7.5" - 5'9.5"	161 - 180	41" - 43.5"	33" - 35"
L	5'10" - 6'	170 - 190	41" - 43.5"	33" - 35"
LT	6'2" - 6'4"	180 - 200	41" - 43.5"	33" - 35"
XLS	5'8.5" - 5'10.5"	181 - 200	43.5" - 46"	35" - 37"
XL	5'11" - 6'1"	190 - 210	43.5" - 46"	35" - 37"
XLT	6'3" - 6'5"	200 - 220	43.5" - 46"	35" - 37"
2XLS	5'9.5" - 5'11.5"	201 - 220	46" - 48.5"	37" - 39"
2XL	6' - 6'2"	210 - 230	46" - 48.5"	37" - 39"
3XL	6' - 6'3"	230 - 250	48.5" - 51"	39" - 44"
4XL	6'1" - 6'4"	250 - 270	51" - 53.5"	44" - 48"

How to Measure

Wetsuit sizing is based primarily on height and weight. Use both measurements together to determine the best size.

Chest: Measure around the fullest part of the chest, keeping the tape level across your back.
Sleeve Length: Measure from the shoulder seam down the outside of the sleeve to the end of the cuff or hem. For the most accurate measurement, lay the garment flat with the sleeve fully extended.
Waist: Measure around your natural waist, typically the narrowest part of your torso.
Hips: Measure around the fullest part of your hips and seat.
Inseam: Measure from the crotch seam down the inside of the leg to the bottom edge of the hem. For the most accurate measurement, lay the garment flat and measure along the inside leg seam.

Fit & Sizing Notes

Wetsuits are designed to fit snug for warmth, comfort, and performance. A properly fitted wetsuit helps limit water entry and maintains body heat.

A wetsuit should feel tight when dry, like light compression. This is normal and will feel more comfortable once in the water.

The suit should lie flat against your body with minimal gaps. Excess space can reduce warmth and overall performance.

You should be able to move your arms and legs freely without restriction to breathing or movement.

Between Sizes

If you are between sizes, choose based on fit preference. Size down for a closer, performance-oriented fit or size up for easier entry and added comfort.