ONeill Reactor-2 3/2 Back Zip Summer Wetsuit Blue

£109.95
In stock
MODEL YEAR: 2026
Only %1 left
SKU
O5040EJ7
Colour:
Size Guide

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Product Description

  • Thickness – 3/2 mm
  • Seams – Flatlock stitched
  • Zip – YKK back zip system
  • Neoprene – 100% Superstretch neoprene
  • Paddle Zones – Strategic seamless paddle zones
  • Neck – Double Super Seal neck closure
  • Warranty – 1 year workmanship and materials

Suit Description

The O’Neill Reactor 3/2 Back Zip Wetsuit delivers proven performance technology at an exceptional price point, making it one of the best entry-level wetsuits available. Built using O’Neill’s exclusive Superstretch neoprene throughout, the Reactor offers excellent flexibility and comfort while maintaining durability for regular use.

Flatlock stitched seams keep the suit lightweight and breathable, ideal for warmer water sessions, while the double Super Seal neck closure helps reduce flushing and improve comfort. Wind-resistant smooth skin panels on the chest and back add extra warmth during breezy summer days, making the Reactor a reliable choice for UK summer conditions.

Designed as a true all-rounder, the Reactor 3/2 is perfect for surfing, paddleboarding, bodyboarding and a wide range of water sports. It strikes an excellent balance between warmth, flexibility and value, making it a go-to suit for beginners and experienced surfers alike.


Expert Opinion

If you’re looking for your first wetsuit — or a dependable summer suit that will last — the O’Neill Reactor series is hard to beat. O’Neill have refined this range over years of development across men’s, women’s and kids’ suits, and it really shows in the fit and comfort.

The quality of the Superstretch neoprene and the double neck seal puts the Reactor ahead of most budget wetsuits on the market. It’s a classic buy-once-buy-right option: well made, comfortable and great value. Don’t be tempted by cheaper alternatives — this is one of the best price-to-performance wetsuits available.


Q&A

Q: What water temperatures is a 3/2 wetsuit suitable for?
A: A 3/2 is ideal for summer conditions, typically around 16–20C, and works well in the UK from late spring through to early autumn.


Q: Is this a good wetsuit for beginners?
A: Yes — it’s one of the best entry-level wetsuits available thanks to its comfort, flexibility and excellent value.


Q: What does flatlock stitching mean?
A: Flatlock seams are stitched rather than sealed, making them lightweight and flexible, perfect for warmer water use.


Q: Is the back zip easy to use?
A: Yes — the YKK back zip makes the suit very easy to get in and out of, especially for beginners.


Q: Can this suit be used for sports other than surfing?
A: Absolutely — it’s suitable for surfing, SUP, bodyboarding, kayaking and general watersports.


Why Buy From Shore.co.uk

  • We’ve been selling wetsuits for over 30 years
  • We use the suits we sell – call our friendly staff for advice on 01243 674830
  • Europe’s largest dedicated wetsuit showroom
  • No-hassle returns – if it’s not right, send it back for a full refund or exchange

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Brand info

O'Neill Clothing & Wetsuits

O'Neill Wetsuits and Fashion have been stocked at Shore since the beginning. Right back when the store first opened, Simon the founder was the fist shop in the UK with the suits in store when they first landed from America. As the Brand has grown so has our offering and we are super happy that we have the largest dedicated O'Neill wetsuit showroom in the world plus a huge range of fashion all in store right now.

Size Guide

Product sizeHeightWeightChestWaist
2XS 168 - 173 cm
5'6" - 5"8 ft
52 - 59 kg
115 - 130 lbs
90 - 93 cm
35.5" - 36.5" in
70 - 72 cm
27.5" - 28" in
XS 170 - 175 cm
5'7" - 5'9"ft
57 - 64 kg
125 - 140 lbs
93 - 95 cm
36.5" - 37.5" in
72 - 75 cm
28" - 29.5" in 
SS 166 - 171 cm
5'5" - 5'7" ft
59 - 68 kg
130 - 150 lbs
95 - 99 cm
37.5" - 39" in
75 - 79 cm
29.5" - 31" in
S 173 - 178 cm
5'8" - 5'10" ft
61 - 70 kg
135 - 155 lbs
95 - 99 cm
37.5" - 39" in
75 - 79 cm
29.5" - 31" in
ST 183 - 188 cm
6'0" - 6'2" ft
66 - 75 kg
146 - 165 lbs
95 - 99 cm
37.5" - 39" in
75 - 79 cm
29.5" - 31" in
MS 169 - 174 cm
5'6.5" - 5'8.5" ft
66 - 75 kg
145 - 165 lbs
99 - 104 cm
39" - 41" in
79 - 84 cm
31" - 33" in
M 175 - 180 cm
5'9" - 5'11" ft
70 - 77 kg
154 - 170 lbs
99 - 104 cm
39" - 41" in
79 - 84 cm
31" - 33" in
MT 185 - 191 cm
6'1" - 6'3" ft
73 - 82 kg
160 - 180 lbs
99 - 104 cm
39" - 41" in
79 - 84 cm
31" - 33" in
LS 171 - 177 cm
5'7.5" - 5'9.5" ft
73 - 82 kg
160 - 180 lbs
104 - 110 cm
41" - 43" in
84 - 89 cm
33" - 35" in
L 178 - 183 cm
5'10" - 6'0" ft
77 - 86 kg
170 - 190 lbs
104 - 110 cm
41" - 43" in
84 - 89 cm
33" - 35" in
LT 188 - 193 cm
6'2" - 6'4" ft
82 - 91 kg
181 - 201 lbs
104 - 110 cm
41" - 43" in
84 - 89 cm
33" - 35" in
XLS 174 - 179 cm
5'8.5" - 5'10.5" ft
82 - 91 kg
181 - 201 lbs
110 - 117 cm
43" - 46" in
89 - 94 cm
35" - 37" in
XL 180 - 185 cm
5'11" - 6'1" ft
86 - 95 kg
190 - 209 lbs
110 - 117 cm
43.5" - 46" in
89 - 94 cm
35" - 37" in
XLT 191 - 196 cm
6'3" - 6'5" ft
91 - 100 kg
201 - 220 lbs
110 - 117 cm
43.5" - 46" in
89 - 94 cm
35" - 37" in
2XL 183 - 188 cm
6'0" - 6'2" ft
95 - 104 kg
210 - 230 lbs
117 - 123 cm
46" - 48.5" in
94 - 99 cm
37" - 39" in
3XL 183 - 191 cm
6'0" - 6'3" ft
104 - 113 kg
230 - 250 lbs
123 - 130 cm
48.5" - 51" in
99 - 112 cm
39" - 44" in
4XL 185 - 193 cm
6'1" - 6'4" ft
113 - 122 kg
250 - 269 lbs
130 - 136 cm
51" - 53.5" in
112 - 122 cm
44" - 48" in

Check out the above video for all the information you need regarding on what size wetsuit to order plus how to make sure when the suit arrives you test the fit properly

Delivery and Returns

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30 days to ship back to us

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In Store Stock

Size Quantity in store
XS 1 - In Store now
SM 1 - In Store now
MS 1 - In Store now
ME 1 - In Store now
MT 1 - In Store now
LS 1 - In Store now
LG 1 - In Store now
LT 1 - In Store now
XLS 1 - In Store now
XL 1 - In Store now
XLT 1 - In Store now
2XL 1 - In Store now
3XL 1 - In Store now
4XL 1 - In Store now

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Why not come visit us in store? Over 65% of our range is in store now with the majority of the rest of our stock available to be collected with 24 hours.(Monday to Friday)

How it works

At checkout enter the delivery address: PO20 8DZ

Items ready to be collected in store 24 hours later (Monday to Friday)

Location

20-22 Shore Road
East Wittering, Chichester, PO20 8DZ

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