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Ex Demo: 2025 Thermal Reaction (Men's)

Ex Demo: 2025 Thermal Reaction (Men's)

Regular price £400.00 GBP

Sale price £400.00 GBP Regular price ~~£595.00 GBP~~
Unit price per

Size - SM XS SM SMT M MT ML L XL XXL

Product variants

THIS IS A WETSUIT THAT WAS EITHER SOLD AND RETURNED OR USED IN A DEMO SITUATION. THIS WETSUIT MAY HAVE BEEN SWAM IN, AND MAY SHOW LIGHT WEAR BUT HAS BEEN INSPECTED FOR ANY DAMAGE OR ISSUES. IF YOU HAVE A QUESTION ABOUT THIS PRODUCT PLEASE FEEL FREE TO EMAIL US.

Ex Demo: 2025 Thermal Reaction (Men's)

Our flagship suit for very cold water. The Thermal Reaction Wetsuit is crafted on the same pattern as it's warmer water twin, the Reaction Wetsuit, but is fully lined without mid-weight zirconium jersey for enhanced protection in frigid temperatures. This unique liner dries fast, maximizes warmth and offers excellent flexibility.

Purchasing Ex Demo Suits:

Ex Demo suits are returned or demo gear that has been either tried on or lightly used. We've inspected all items to ensure that they are in almost-new condition with no structural issues, tears, etc. Very occasionally, a wetsuit may have a small nick or tear that we have repaired.

Ex Demo suits cannot be refunded. However, we want you to love and be completely satisfied with your purchase. Email us before ordering and we'll help you with sizing and other questions. If are not happy once you receive your item, please contact us within 30 days of receipt so we can exchange the item if another size or colour is available, or offer you credit towards the purchase of a new item.

All items have been inspected for damage or other issues.

Hover to highlight:Click to highlight:

1.5mm
2mm
3mm
4mm
5mm

Neoprene Buoyancy & Flexibility

When it comes to a swimming wetsuit, two factors really matter: Flexibility and Buoyancy. Thinner neoprene is more flexible, while thicker neoprene will provide more buoyancy.

Blueseventy wetsuits are strategically designed to offer the most flexibility where you need it, such as the arms, shoulders and upper back area. We use thin, 1.5mm - 2mm neoprene in these areas to offer complete freedom of movement throughout your entire stroke.

Thicker neoprene is placed in areas that typically tend to sink for swimmers, and where flexibility is not key. You'll find 4mm - 5mm neoprene in the chest, hips, and upper legs to enhance your swim form to be as efficient and streamlined as possible.

Hover over each neoprene thickness on the graphic to see how this wetsuit is constructed.

Find your size

Use our size finder to pick the perfect wetsuit size. Simply select your gender, then enter your height (ft / in) and your weight (lbs). Click GET MY SIZE for your results.

RACE FIT will be a tight fitting wetsuit that will give you the best overall performance, but may be challenging to get into.
COMFORT FIT will be a more comfortable, easier to don wetsuit, but may not offer the fastest performance.

If you have questions on wetsuit sizing, email us@blueseventy.com.

Product

You are:

Men Women

Height (FT/IN):

Weight (lbs):

Imperial

Metric

height

ft/in

weight

lbs

height

cm

weight

kg

4'10" - 5'3"

121 - 143

147 - 160

55 - 65

5'4" - 5'7"

141 - 161

162 - 170

64 - 73

5'8" - 6'1"

150 - 164

172 - 185

68 - 74

5'8" - 6'1"

158 - 180

172 - 185

71 - 81

5'11" - 6'4"

160 - 182

180 - 193

72 - 82

5'9" - 6'3"

176 - 195

175 - 190

80 - 88

5'11" - 6'4"

192 - 215

180 - 193

87 - 98

6'0" - 6'7"

209 - 235

183 - 200

95 - 107

6'0" - 6'7"

230+

183 - 200

104+

Sizing Tips

How to find your size

Men: The "T" (Tall) sizes add length across the torso, arms and legs. These sizes work best for a taller, lean body type.

Women: The "A" (Athena) sizes offer a larger size for a shorter frame, allowing women with more curves to comfortably find a good size.

If your height and weight do not correspond to one size, use these guidelines for sizing up or down:
If you're taller than the recommended sizes for your weight, choose the closest size based on height.
If you're shorter than the recommended sizes for your weight, choose the closest size based on weight.

COMFORT vs PERFORMANCE

Our wetsuits are meant to fit like a second skin aka tight. A performance fit will be compressive and tight and may feel uncomfortable on land. If you are near the top of a size recommendation and prefer a more comfortable fit, size up.

REACTION

If your height and weight fall right between two sizes we recommend sizing down as the added side flex and fit panels can make this suit feel roomier.

Alliance & Glide

The Alliance and Glide wetsuit do not come in every wetsuit size. If your recommended size is not listed, please choose the best size based on your weight. For the Alliance, if you are near the top of a recommended size, we recommend sizing up as the front zipper makes the suit feel tighter in the chest and can be more difficult to get on and off.

Imperial

Metric

height

ft/in

weight

lbs

height

cm

weight

kg

4'7" - 5'1"

98 - 112

139 - 155

45 - 51

4'10" - 5'3"

108 - 121

147 - 160

49 - 55

5'0" - 5'5"

117 - 132

152 - 165

53 - 60

5'3" - 5'9"

123 - 141

160 - 175

56 - 64

5'3" - 5'9"

145 - 167

160 - 175

66 - 76

5'5" - 5'11"

139 - 154

165 - 180

63 - 70

5'10" - 6'0"

145 - 165

170 - 183

66 - 75

5'7" - 6'0"

165 - 190

170 - 183

75 - 86

5'7" - 6'0"

185+

170 - 183

84+

Sizing Tips

How to find your size

Use our handy size finder to pick the perfect wetsuit size. Simply select your gender, then enter your height (ft / in) and your weight (lbs). Click GET MY SIZE for your results. RACE FIT will be a tight fitting wetsuit that will give you the best overall performance, but may be challenging to get into. COMFORT FIT will be a more comfortable, easier to don wetsuit, but may not offer the fastest performance. If you have questions on wetsuit sizing, email us@blueseventy.com.

Men: The "T" (Tall sizes offer a longer torso with the same dimensions as the standard size. These sizes work best for a more taller, lean body type)

Women: The "A" (Athena) sizes offer a larger size for a shorter frame, allowing women with more curves to comfortably find a good size.

If your height and weight do not correspond to one size, use these guidelines for sizing up or down:
If you're taller than the recommended sizes for your weight, choose the closest size based on height.
If you're shorter than the recommended sizes for your weight, choose the closest size based on weight.

COMFORT vs PERFORMANCE

Our wetsuits are meant to fit like a second skin aka tight. A performance fit will be compressive and tight and | Next eel uncomfortable on land. If you are near the top of a size recommendation and prefer a more comfortable fit, size up.

REACTION

If your height and weight fall right between two sizes we recommend sizing down as the added side flex and fit panels can make this suit feel roomier.

Alliance & Glide

The Alliance and Glide wetsuit do not come in every wetsuit size. If your recommended size is not listed, please choose the best size based on your weight. For the Alliance, if you are near the top of a recommended size, we recommend sizing up as the front zipper makes the suit feel tighter in the chest and can be more difficult to get on and off.

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Ex Demo: 2025 Thermal Reaction (Men's)

Ex Demo: 2025 Thermal Reaction (Men's)

Elite

Superior

8.5ºC / 48ºF

Ex Demo: 2025 Thermal Reaction (Men's)

Key Features (Click to Expand)

Neoprene Buoyancy & Flexibility

Find your size

Sizing Tips

Sizing Tips

Customer Reviews