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MEN'S GEAR

Maverick X.3
The fastest wetsuit ever.

Elite Aero Tri Suit
Wind-tunnel-tested.
Real-world-proven.

SIM Pro.3
Train smarter.

WOMEN'S GEAR

Maverick X.3
The fastest wetsuit ever.

Elite Aero Tri Suit
Wind-tunnel-tested.
Real-world-proven.

LCB Swimwear
Train like the mermaid.

NEW RELEASES

T1X Transition Pack
For race day. Training day. Travel Day.

R2 Goggle
The ultimate high-performance goggle.

Maverick X.3 Thermal
The fastest cold water wetsuit ever.

Viper X.3 Ghost
Our fastest swimskin ever.

BESTSELLERS

Maverick X.3
The fastest wetsuit ever.

Elite Aero Tri Suit
Wind-tunnel-tested.
Real-world-proven.

Viper X.3
The most popular swimskins in Kona.

SIM Pro.3
Train smarter. Swim faster.

R2 Goggles
Maximum forward visibility in open water.

Read the Field Report

LATEST POST:
Catherine Breed's 900-Mile Ocean Swim

IRONMAN water temperatures wetsuit legal

FEATURED:
Water Temp for Every IRONMAN and 70.3 Race

SAME SPEED, LESS MONEY

Great deals on past-season and open-box gear.

THE OUTLET

Wetsuits Outlet

Swimskins Outlet

Run Apparel Outlet

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Men's Viper Pro.3 Swimskin
Men's Viper Pro.3 Swimskin
Men's Viper Pro.3 Swimskin
Men's Viper Pro.3 Swimskin

Men's Viper Pro.3 Swimskin

$325
Size: Extra Small

THIS SWIMSKIN IS DESIGNED FOR:

Proven speed and tech at a more accessible price.

This sleek swimskin sheds drag, supports a tight body line, and gets you out of the water faster—without the top-tier price tag. With Italian stretch-woven fabrics made from recycled nylon, bonded seams, and drag-defying hydrophobic coatings—this is a premium suit built for triathletes who refuse to compromise on performance.

Think of it as free speed for non-wetsuit swims.

WHAT'S A SWIMSKIN? AND WHEN TO HAVE ONE.

Swimskins are used in warm water races (above 76.1°F / 24.5°C) when wetsuits aren’t legal. They reduce drag by covering your tri kit with an ultra fast, hydrophobic layer—and will save you several minutes in the water.

Because race-day water temps can swing by a few degrees, it’s smart to pack a swimskin for any race where water is expected to be over 70°F / 21°C.

Wondering the water temp for your race? This page shows the average historical water temperature for every IRONMAN and IRONMAN 70.3 race in the world. 

Size Chart Size Chart

What you'll feel

What you'll feel

Fast and frictionless from the first stroke to T1, the Viper Pro.3 slices through the water with a barely-there, hydrodynamic feel. Targeted compression stabilizes your core, while unrestricted shoulders and arms let you hold form and power through every stroke. Advanced hydrophobic coatings and bonded seams shed water and drag, keeping you cool, efficient, and primed for the bike.

Fast and frictionless from the first stroke to T1, the Viper Pro.3 slices through the water with a barely-there, hydrodynamic feel. Targeted compression stabilizes your core, while unrestricted shoulders and arms let you hold form and power through every stroke. Advanced hydrophobic coatings and bonded seams shed water and drag, keeping you cool, efficient, and primed for the bike.

Who it's built for

Who it's built for

  1. Triathletes racing in warm, non-wetsuit legal conditions who want proven ROKA speed without the pro price.
  2. Age-groupers and first-time Ironman athletes looking for a faster, sleeker alternative to a tri suit swim.
  3. Athletes who seek quality fabrics and pro-level details but don’t need every elite-spec feature of the Viper X.3.

  1. Triathletes racing in warm, non-wetsuit legal conditions who want proven ROKA speed without the pro price.
  2. Age-groupers and first-time Ironman athletes looking for a faster, sleeker alternative to a tri suit swim.
  3. Athletes who seek quality fabrics and pro-level details but don’t need every elite-spec feature of the Viper X.3.

What makes it fast

What makes it fast

  1. Hydrophobic Technology: Italian-woven textiles with Teflon® coating to repel water and shed drag.
  2. Bonded Seam Construction: Smooth, hidden reinforcement for durability without irritation.
  3. Light Compression: Keep your hips high and body line straight for better efficiency.
  4. Breakaway Auto-Lock Zipper: Quick release for fast T1 transitions.
  1. Hydrophobic Technology: Italian-woven textiles with Teflon® coating to repel water and shed drag.
  2. Bonded Seam Construction: Smooth, hidden reinforcement for durability without irritation.
  3. Light Compression: Keep your hips high and body line straight for better efficiency.
  4. Breakaway Auto-Lock Zipper: Quick release for fast T1 transitions.

Specs at a Glance

Select up to Three Models & Compare Features

VIPER SWIMSKIN Size Chart

FIT TIPS

  • Swimskins should fit snugly but comfortably without inhibiting your breathing or arm movement. Fit may feel different while swimming vs. on land, so make sure to try the suit in the water. They are meant to have a tight, compression fit, like a competition pool swimming suit.
  • Note that swimskins are meant to be worn on top of a race top/bottom or race suit only for the swim portion of the race. They are very specific, high performance garments not meant to be worn alone like traditional swimwear and the suits can be see-through under certain light or when wet. Undergarments such as a tri kit or swimsuit are strongly advised.
  • Your race kit will affect the fit slightly, so please be sure to try them on and swim in them with your race kit or another suit underneath.
Select your height, then locate your suggested size based on your weight.
ENGLISH
METRIC
Select Your Height
≤5'4"
5'5"
5'6"
5'7"
5'8"
5'9"
5'10"
5'11"
6'0"
6'1"
6'2"
6'3"
6'4"
6'5"
6'6"+
≤5'4"
125 - 129 LBS
XS
130 - 134 LBS
S
135 - 139 LBS
S
140 - 144 LBS
M
145 - 149 LBS
M
150 - 154 LBS
ML
155 - 159 LBS
ML
5'5"
125 - 129 LBS
XS
130 - 134 LBS
S
135 - 139 LBS
S
140 - 144 LBS
M
145 - 149 LBS
M
150 - 154 LBS
ML
155 - 159 LBS
ML
160 - 164 LBS
ML
165 - 169 LBS
ML
170 - 174 LBS
ML
5'6"
125 - 129 LBS
XS
130 - 134 LBS
S
135 - 139 LBS
S
140 - 144 LBS
M
145 - 149 LBS
M
150 - 154 LBS
ML
155 - 159 LBS
ML
160 - 164 LBS
ML
165 - 169 LBS
ML
170 - 174 LBS
ML
175 - 179 LBS
ML
180 - 184 LBS
ML
5'7"
125 - 129 LBS
XS
130 - 134 LBS
S
135 - 139 LBS
S
140 - 144 LBS
M
145 - 149 LBS
M
150 - 154 LBS
M
155 - 159 LBS
ML
160 - 164 LBS
ML
165 - 169 LBS
ML
170 - 174 LBS
ML
175 - 179 LBS
ML
180 - 184 LBS
ML
185 - 189 LBS
L
190 - 194 LBS
L
5'8"
125 - 129 LBS
XS
130 - 134 LBS
S
135 - 139 LBS
S
140 - 144 LBS
S
145 - 149 LBS
M
150 - 154 LBS
M
155 - 159 LBS
M
160 - 164 LBS
ML
165 - 169 LBS
ML
170 - 174 LBS
ML
175 - 179 LBS
ML
180 - 184 LBS
ML
185 - 189 LBS
L
190 - 194 LBS
L
195 - 199 LBS
XL
200 - 204 LBS
XL
5'9"
125 - 129 LBS
S
130 - 134 LBS
S
135 - 139 LBS
S
140 - 144 LBS
S
145 - 149 LBS
M
150 - 154 LBS
M
155 - 159 LBS
M
160 - 164 LBS
M
165 - 169 LBS
ML
170 - 174 LBS
ML
175 - 179 LBS
ML
180 - 184 LBS
ML
185 - 189 LBS
L
190 - 194 LBS
L
195 - 199 LBS
XL
200 - 204 LBS
XL
205 - 209 LBS
XL
5'10"
125 - 129 LBS
ST
130 - 134 LBS
ST
135 - 139 LBS
ST
140 - 144 LBS
ST
145 - 149 LBS
M
150 - 154 LBS
M
155 - 159 LBS
M
160 - 164 LBS
M
165 - 169 LBS
ML
170 - 174 LBS
ML
175 - 179 LBS
ML
180 - 184 LBS
ML
185 - 189 LBS
L
190 - 194 LBS
L
195 - 199 LBS
XL
200 - 204 LBS
XL
205 - 209 LBS
XL
210 - 214 LBS
XL
5'11"
130 - 134 LBS
ST
135 - 139 LBS
ST
140 - 144 LBS
ST
145 - 149 LBS
ST
150 - 154 LBS
M
155 - 159 LBS
M
160 - 164 LBS
M
165 - 169 LBS
M
170 - 174 LBS
ML
175 - 179 LBS
ML
180 - 184 LBS
ML
185 - 189 LBS
L
190 - 194 LBS
L
195 - 199 LBS
L
200 - 204 LBS
XL
205 - 209 LBS
XL
210 - 214 LBS
XL
215 - 219 LBS
XL
6'0"
135 - 139 LBS
ST
140 - 144 LBS
ST
145 - 149 LBS
ST
150 - 154 LBS
ST
155 - 159 LBS
M
160 - 164 LBS
M
165 - 169 LBS
MT
170 - 174 LBS
MT
175 - 179 LBS
MT
180 - 184 LBS
MT
185 - 189 LBS
L
190 - 194 LBS
L
195 - 199 LBS
L
200 - 204 LBS
L
205 - 209 LBS
XL
210 - 214 LBS
XL
215 - 219 LBS
XL
220 - 224 LBS
XXL
6'1"
140 - 144 LBS
ST
145 - 149 LBS
ST
150 - 154 LBS
ST
155 - 159 LBS
ST
160 - 164 LBS
MT
165 - 169 LBS
MT
170 - 174 LBS
MT
175 - 179 LBS
MT
180 - 184 LBS
MT
185 - 189 LBS
L
190 - 194 LBS
L
195 - 199 LBS
L
200 - 204 LBS
L
205 - 209 LBS
XL
210 - 214 LBS
XL
215 - 219 LBS
XL
220 - 224 LBS
XXL
225 - 229 LBS
XXL
6'2"
145 - 149 LBS
ST
150 - 154 LBS
ST
155 - 159 LBS
ST
160 - 164 LBS
MT
165 - 169 LBS
MT
170 - 174 LBS
MT
175 - 179 LBS
MT
180 - 184 LBS
MT
185 - 189 LBS
LT
190 - 194 LBS
LT
195 - 199 LBS
LT
200 - 204 LBS
LT
205 - 209 LBS
XL
210 - 214 LBS
XL
215 - 219 LBS
XL
220 - 224 LBS
XXL
225 - 229 LBS
XXL
230 - 240+ LBS
XXL
6'3"
160 - 164 LBS
MT
165 - 169 LBS
MT
170 - 174 LBS
MT
175 - 179 LBS
MT
180 - 184 LBS
MT
185 - 189 LBS
LT
190 - 194 LBS
LT
195 - 199 LBS
LT
200 - 204 LBS
LT
205 - 209 LBS
XL
210 - 214 LBS
XL
215 - 219 LBS
XL
220 - 224 LBS
XXL
225 - 229 LBS
XXL
230 - 240+ LBS
XXL
6'4"
165 - 169 LBS
MT
170 - 174 LBS
MT
175 - 179 LBS
MT
180 - 184 LBS
MT
185 - 189 LBS
LT
190 - 194 LBS
LT
195 - 199 LBS
LT
200 - 204 LBS
LT
205 - 209 LBS
XL
210 - 214 LBS
XL
215 - 219 LBS
XL
220 - 224 LBS
XL
225 - 229 LBS
XXL
230 - 240+ LBS
XXL
6'5"
170 - 174 LBS
MT
175 - 179 LBS
MT
180 - 184 LBS
LT
185 - 189 LBS
LT
190 - 194 LBS
LT
195 - 199 LBS
LT
200 - 204 LBS
LT
205 - 209 LBS
XL
210 - 214 LBS
XL
215 - 219 LBS
XL
220 - 224 LBS
XL
225 - 229 LBS
XXL
230 - 240+ LBS
XXL
6'6"+
180 - 184 LBS
LT
185 - 189 LBS
LT
190 - 194 LBS
LT
195 - 199 LBS
LT
200 - 204 LBS
LT
205 - 209 LBS
XL
210 - 214 LBS
XL
215 - 219 LBS
XL
220 - 224 LBS
XL
225 - 229 LBS
XXL
230 - 240+ LBS
XXL
Select Your Height
≤163cm
165cm
168cm
170cm
173cm
175cm
178cm
180cm
183cm
185cm
188cm
191cm
193cm
196cm
198cm+
≤163cm
57 - 59 KG
XS
59 - 61 KG
S
61 - 63 KG
S
63 - 65 KG
M
66 - 68 KG
ML
68 - 70 KG
ML
165cm
57 - 59 KG
XS
59 - 61 KG
S
61 - 63 KG
S
63 - 65 KG
M
66 - 68 KG
M
68 - 70 KG
ML
70 - 72 KG
ML
72 - 74 KG
ML
75 - 77 KG
ML
77 - 79 KG
ML
168cm
57 - 59 KG
XS
59 - 61 KG
S
61 - 63 KG
S
63 - 65 KG
M
66 - 68 KG
M
68 - 70 KG
ML
70 - 72 KG
ML
72 - 74 KG
ML
75 - 77 KG
ML
77 - 79 KG
ML
79 - 81 KG
ML
82 - 84 KG
ML
170cm
57 - 59 KG
XS
59 - 61 KG
S
61 - 63 KG
S
63 - 65 KG
M
66 - 68 KG
M
68 - 70 KG
M
70 - 72 KG
ML
72 - 74 KG
ML
75 - 77 KG
ML
77 - 79 KG
ML
79 - 81 KG
ML
82 - 84 KG
ML
84 - 86 KG
L
86 - 88 KG
L
173cm
57 - 59 KG
XS
59 - 61 KG
S
61 - 63 KG
S
63 - 65 KG
S
66 - 68 KG
M
68 - 70 KG
M
70 - 72 KG
M
72 - 74 KG
ML
75 - 77 KG
ML
77 - 79 KG
ML
79 - 81 KG
ML
82 - 84 KG
ML
84 - 86 KG
L
86 - 88 KG
L
88 - 90 KG
XL
91 - 93 KG
XL
175cm
57 - 59 KG
S
59 - 61 KG
S
61 - 63 KG
S
63 - 65 KG
S
66 - 68 KG
M
68 - 70 KG
M
70 - 72 KG
M
72 - 74 KG
M
75 - 77 KG
ML
77 - 79 KG
ML
79 - 81 KG
ML
82 - 84 KG
ML
84 - 86 KG
L
86 - 88 KG
L
88 - 90 KG
XL
91 - 93 KG
XL
93- 95 KG
XL
178cm
57 - 59 KG
ST
59 - 61 KG
ST
61 - 63 KG
ST
63 - 65 KG
ST
66 - 68 KG
M
68 - 70 KG
M
70 - 72 KG
M
72 - 74 KG
M
75 - 77 KG
ML
77 - 79 KG
ML
79 - 81 KG
ML
82 - 84 KG
ML
84 - 86 KG
L
86 - 88 KG
L
88 - 90 KG
XL
91 - 93 KG
XL
93- 95 KG
XL
95 - 97 KG
XL
180cm
59 - 61 KG
ST
61 - 63 KG
ST
63 - 65 KG
ST
66 - 68 KG
ST
68 - 70 KG
M
70 - 72 KG
M
72 - 74 KG
M
75 - 77 KG
M
77 - 79 KG
ML
79 - 81 KG
ML
82 - 84 KG
ML
84 - 86 KG
L
86 - 88 KG
L
88 - 90 KG
L
91 - 93 KG
XL
93- 95 KG
XL
95 - 97 KG
XL
97 - 99 KG
XL
183cm
61 - 63 KG
ST
63 - 65 KG
ST
66 - 68 KG
ST
68 - 70 KG
ST
70 - 72 KG
M
72 - 74 KG
M
75 - 77 KG
MT
77 - 79 KG
MT
79 - 81 KG
MT
82 - 84 KG
MT
84 - 86 KG
L
86 - 88 KG
L
88 - 90 KG
L
91 - 93 KG
L
93- 95 KG
XL
95 - 97 KG
XL
97 - 99 KG
XL
100 - 102 KG
XXL
185cm
63 - 65 KG
ST
66 - 68 KG
ST
68 - 70 KG
ST
70 - 72 KG
ST
72 - 74 KG
MT
75 - 77 KG
MT
77 - 79 KG
MT
79 - 81 KG
MT
82 - 84 KG
MT
84 - 86 KG
L
86 - 88 KG
L
88 - 90 KG
L
91 - 93 KG
L
93- 95 KG
XL
95 - 97 KG
XL
97 - 99 KG
XL
100 - 102 KG
XXL
102 - 104 KG
XXL
188cm
66 - 68 KG
ST
68 - 70 KG
ST
70 - 72 KG
ST
72 - 74 KG
MT
75 - 77 KG
MT
77 - 79 KG
MT
79 - 81 KG
MT
82 - 84 KG
MT
84 - 86 KG
LT
86 - 88 KG
LT
88 - 90 KG
LT
91 - 93 KG
LT
93- 95 KG
XL
95 - 97 KG
XL
97 - 99 KG
XL
100 - 102 KG
XXL
102 - 104 KG
XXL
104 - 109+ KG
XXL
191cm
72 - 74 KG
MT
75 - 77 KG
MT
77 - 79 KG
MT
79 - 81 KG
MT
82 - 84 KG
MT
84 - 86 KG
LT
86 - 88 KG
LT
88 - 90 KG
LT
91 - 93 KG
LT
93- 95 KG
XL
95 - 97 KG
XL
97 - 99 KG
XL
100 - 102 KG
XXL
102 - 104 KG
XXL
104 - 109+ KG
XXL
193cm
75 - 77 KG
MT
77 - 79 KG
MT
79 - 81 KG
MT
82 - 84 KG
MT
84 - 86 KG
LT
86 - 88 KG
LT
88 - 90 KG
LT
91 - 93 KG
LT
93- 95 KG
XL
95 - 97 KG
XL
97 - 99 KG
XL
100 - 102 KG
XL
102 - 104 KG
XXL
104 - 109+ KG
XXL
196cm
77 - 79 KG
MT
79 - 81 KG
MT
82 - 84 KG
LT
84 - 86 KG
LT
86 - 88 KG
LT
88 - 90 KG
LT
91 - 93 KG
LT
93- 95 KG
XL
95 - 97 KG
XL
97 - 99 KG
XL
100 - 102 KG
XL
102 - 104 KG
XXL
104 - 109+ KG
XXL
198cm
82 - 84 KG
LT
84 - 86 KG
LT
86 - 88 KG
LT
88 - 90 KG
LT
91 - 93 KG
LT
93- 95 KG
XL
95 - 97 KG
XL
97 - 99 KG
XL
100 - 102 KG
XL
102 - 104 KG
XXL
104 - 109+ KG
XXL

Overall rating: 5.0 / 5 from 2 reviews.

AI Generated Review Summary

Summary topics

  • (28%%): Many customers remarked that the fit of the product is great and perfect, with some mentioning it fits well.
  • (8%%): Customers expressed appreciation for the great feel of the product, which was mentioned multiple times in the reviews.
  • (8%%): It was observed by customers that the quality of the product is outstanding, with many praising its craftsmanship.
  • (8%%): Customers expressed appreciation for the high quality, smooth swim, and good triathlon swim skin.
  • (16%%): A significant number of customers stated that the swim skin is great, fast, comfortable, and top notch.

Review topics: [].

Review highlights

  • "Good quality and fits perfectly" — Foo H.
  • "High quality smooth swim." — Kevin H.
  • "The quality of the material or fabric is outstanding." — Dennis M.

Reviews

Great customer service

"The Roka team were really helpful, i contacted them about my purchase and appeared the first item was lost in transit. They immediately sent another item so it could arrive before the competition i purchased it for. The skin itself fits really well, my only negative feedback would be the zipper has no cord to be able to pull up or get off on your own. Requires assistance from a second person and this might be an issue in T1 transition."

— Aaron M. (5/5)

Love it.

"Sizing guidance on website was good for me."

— Matt F. (5/5)

Q&A

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