Save 25% on the Trailpeak Jacket & Overtrousers set. Shop the set

Get a free beanie with any Trailpeak jacket. Shop jackets

Buy one, get one half price on Portwest fleeces. Shop fleeces

O'Neill Wetsuits

Few brands are as bound up with the wetsuit as O'Neill, and decades of refinement show in how these suits fit and flex. The range runs from thin summer shorties to thick winter suits built for cold Irish water, covering surfing, sea swimming, paddling and every other reason to get in. Men's, women's, youth and toddler sizes mean the whole family can be sorted from one range.

View as

  • O'Neill Youth Reactor II 3/2mm Back Zip Full Wetsuit Black/Ocean / Age 3-4 - 53 Degrees North O'Neill Youth Reactor II 3/2mm Back Zip Full Wetsuit Black/Ocean / Age 3-4 - 53 Degrees North
    Sale

    O'Neill

    Youth Reactor II 3/2mm Back Zip Full Wetsuit

    Wetsuits

    • External key pocket
    • Reinforced knees
    • Flatlock seams
    In stock
    Sale priceFrom €5250 Regular price €7500 Save 30%
  • O'Neill Youth Reactor II 2mm Short Sleeve Back Zip Spring Wetsuit Black/Aqua / Age 3-4 - 53 Degrees North O'Neill Youth Reactor II 2mm Short Sleeve Back Zip Spring Wetsuit Black/Aqua / Age 3-4 - 53 Degrees North
    Sale

    O'Neill

    Kids' Reactor-2 2mm Back Zip Short Sleeve Spring Wetsuit

    Wetsuits

    • 2mm neoprene
    • Back zip
    • Krypto Knee Padz
    In stock
    Sale priceFrom €4200 Regular price €6000 Save 30%
  • O'Neill Men's Reactor II Back Zip Full 3/2mm Wetsuit Black/Ocean / Small - 53 Degrees North O'Neill Men's Reactor II Back Zip Full 3/2mm Wetsuit Black/Ocean / Small - 53 Degrees North
    Sale

    O'Neill

    Men's Reactor II Back Zip Full 3/2mm Wetsuit

    Wetsuits

    • Hidden key pocket
    • Reinforced knees
    • Adjustable collar
    In stock
    Sale priceFrom €9100 Regular price €13000 Save 30%
  • O'Neill Men's Reactor-2 5/3mm Back Zip Full Wetsuit Black / Small - 53 Degrees North O'Neill Men's Reactor-2 5/3mm Back Zip Full Wetsuit Black / Small - 53 Degrees North
    Sale

    O'Neill

    Men's Reactor-2 5/3mm Back Zip Full Wetsuit

    Wetsuits

    • Hidden key pocket
    • YKK back zip
    • Dry seal neck
    In stock
    Sale priceFrom €11200 Regular price €16000 Save 30%
  • O'Neill Women's Reactor-2 Full 3/2mm Wetsuit Black/Light Aqua / X-Small - 53 Degrees North O'Neill Women's Reactor-2 Full 3/2mm Wetsuit Black/Light Aqua / X-Small - 53 Degrees North
    Sale

    O'Neill

    Women's Reactor-2 Full 3/2mm Wetsuit

    Wetsuits

    • Reinforced knees
    • Single seal neck
    • Flatlock seams
    In stock
    Sale priceFrom €8400 Regular price €12000 Save 30%
  • O'Neill Women's Reactor-2 5/3mm Back Zip Full Wetsuit Black / X-Small - 53 Degrees North O'Neill Women's Reactor-2 5/3mm Back Zip Full Wetsuit Black / X-Small - 53 Degrees North
    Sale

    O'Neill

    Women's Reactor-2 5/3mm Back Zip Full Wetsuit

    Wetsuits

    • Hidden key pocket
    • YKK back zip
    • Dry seal neck
    In stock
    Sale priceFrom €11200 Regular price €16000 Save 30%
  • O'Neill Men's Reactor-2 2mm Short Sleeve Spring Wetsuit Black / Small - 53 Degrees North O'Neill Men's Reactor-2 2mm Short Sleeve Spring Wetsuit Black / Small - 53 Degrees North
    Sale

    O'Neill

    Men's Reactor-2 2mm Short Sleeve Spring Wetsuit

    Wetsuits

    • Hidden key pocket
    • Flatlock seams
    • Adjustable collar
    In stock
    Sale price €7000 Regular price €10000 Save 30%
  • O'Neill

    Men's Epic 5/4mm Back Zip Full Wetsuit

    Wetsuits

    • 5/4mm UltraFlex DS
    • Black-Out back zip
    • For 4–11°C water
    In stock
    Regular price €24500
  • O'Neill Men's Epic 3/2mm Back Zip Full Wetsuit Black / Small - 53 Degrees North O'Neill Men's Epic 3/2mm Back Zip Full Wetsuit Black / Small - 53 Degrees North
    Sale

    O'Neill

    Men's Epic 3/2mm Back Zip Full Wetsuit

    Wetsuits

    • 3/2mm UltraFlex DS
    • Black-Out back zip
    • For 12–17°C water
    In stock
    Sale price €15750 Regular price €22500 Save 30%
  • O'Neill Women's Bahia 2/1 Back Zip Long Sleeve Spring Black / X-Small - 53 Degrees North O'Neill Women's Bahia 2/1 Back Zip Long Sleeve Spring Black / X-Small - 53 Degrees North
    Sale

    O'Neill

    Women's Bahia 2/1 Back Zip Long Sleeve Spring

    Wetsuits

    In stock
    Sale price €9100 Regular price €13000 Save 30%
  • O'Neill Women's Epic 3/2mm Back Zip Full Wetsuit Black / X-Small - 53 Degrees North O'Neill Women's Epic 3/2mm Back Zip Full Wetsuit Black / X-Small - 53 Degrees North
    Sale

    O'Neill

    Women's Epic 3/2mm Back Zip Full Wetsuit

    Wetsuits

    • 3/2mm UltraFlex DS
    • Black-Out back zip
    • For 12–17°C water
    In stock
    Sale priceFrom €15750 Regular price €22500 Save 30%
  • O'Neill Girls' Toddler Reactor-2 2mm Back Zip Short Sleeve Spring Wetsuit Slate/Berry/Light Aqua / Age 2 - 53 Degrees North O'Neill Girls' Toddler Reactor-2 2mm Back Zip Short Sleeve Spring Wetsuit Slate/Berry/Light Aqua / Age 2 - 53 Degrees North
    Sale

    O'Neill

    Girls' Toddler Reactor-2 2mm Back Zip Short Sleeve Spring Wetsuit

    Wetsuits

    Low stock
    Sale priceFrom €4000 Regular price €5000 Save 20%
  • O'Neill Women's Reactor-2 2mm Back Zip Short Sleeve Spring Wetsuit Black/Light Aqua / X-Small - 53 Degrees North O'Neill Women's Reactor-2 2mm Back Zip Short Sleeve Spring Wetsuit Black/Light Aqua / X-Small - 53 Degrees North
    Sale

    O'Neill

    Women's Reactor-2 2mm Back Zip Short Sleeve Spring Wetsuit

    Wetsuits

    In stock
    Sale priceFrom €7000 Regular price €10000 Save 30%
  • O'Neill Women's Reactor-2 2mm Short Sleeve Spring Wetsuit Black/Berry / X-Small - 53 Degrees North O'Neill Women's Reactor-2 2mm Short Sleeve Spring Wetsuit Black/Berry / X-Small - 53 Degrees North
    Sale

    O'Neill

    Women's Reactor-2 2mm Short Sleeve Spring Wetsuit

    Wetsuits

    • Hidden key pocket
    • Reinforced knees
    • Single seal neck
    In stock
    Sale priceFrom €6300 Regular price €9000 Save 30%

O'Neill wetsuits for Irish water, from summer shorties to winter suits

Choosing a wetsuit comes down to three things: how cold the water is, how long you stay in and how much you need to move. The range is built around exactly those questions.

Thickness decides how warm you stay

Wetsuit thickness is given in millimetres, and where two numbers appear the first is the thickness over your torso and the second over your arms and legs. Thicker neoprene keeps you warmer, so a 5/4mm suit handles cold winter water while a 2mm is built for warm summer days.

Full suits, spring suits and shorties for different water

A full suit covers your arms and legs for the coldest water. A spring suit trims the sleeves or legs for milder conditions, and a shortie leaves both bare for genuinely warm days, trading warmth for freedom and comfort.

Entry systems change how easy a suit is to get into

Back zip suits are the easiest to pull on and the most forgiving to size, while front zip and chest entry designs cut down the water that flushes in through the zip, keeping you warmer once you are in.

Fits for men, women, youth and toddlers

Cuts are shaped separately for men and women rather than simply scaled, and the youth and toddler suits carry the same warmth thinking in smaller sizes, so a child in the sea stays comfortable as long as the adults do.

Frequently asked questions

What wetsuit thickness do I need for Irish water?

For most of the year in Ireland a 3/2mm suit is the sensible all-rounder, warm enough for spring through autumn without overheating. Through the coldest months a 5/4mm gives noticeably more warmth. In high summer, or for short dips, a 2mm spring suit or shortie is often plenty.

How should a wetsuit fit, and can I try one on in Dublin or Cork?

Snug everywhere, with no loose folds at the lower back, knees or armpits, but not so tight that you cannot fill your lungs or lift your arms overhead. A suit that fits correctly feels slightly restrictive on dry land and comfortable in the water, and any gaps let cold water flush through. Fit is difficult to judge from a size chart alone, so it is worth trying one on. We carry wetsuits in our Dublin and Cork stores.

What is the difference between a full suit and a spring suit?

A full suit has long arms and legs and is made for cold water. A spring suit shortens the arms, the legs or both, which suits warmer conditions and gives you more freedom of movement. Many people own one of each and pick based on the water rather than the calendar.

How do I look after a wetsuit?

Rinse it in cool fresh water after every use, inside and out, and hang it to dry on a wide hanger away from direct sun and heat. Never wring it or leave it crumpled in a bag. A dedicated wetsuit cleaner every so often keeps the neoprene supple and stops it going stale.

Can I collect orders in store?

Yes, choose Click & Collect at checkout. Orders are usually ready within 24 hours and you will get an email when ready. Available from our Dublin Carrickmines, Dublin Blanchardstown and Cork City Centre stores.

Do you offer free delivery on orders?

Yes, we offer free standard delivery on all orders over €100.

Where are your stores located?

We have four stores across Ireland: Dublin Carrickmines, Dublin Blanchardstown, Cork City Centre and Arnotts Dublin.