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Home » Men's Viper X Swimskin

MEN'S VIPER X SWIMSKIN

The Viper X is our next generation swimskin and the best we've made.

The Viper became the most popular swimskin at the IRONMAN World Championship in two short years for a reason. It was first out of the water on multiple occasions and the fastest overall swim.  How did we make the fastest, faster?

Improvements include integrated thermobonded "X" taping on the interior to provide strategic support, enhanced connection and power without restricting breathing or adding any drag to the ultrafast hydrophobic suit.

We made subtle refinements to sizing and several construction details for improved stretch and comfort in the armpits. We took the same uncompromising, ground-up design approach based on years of competitive swimming and triathlon experience, and strategically incorporated all the latest advances in performance swimwear materials and construction. The Viper X features hidden innovation from our team's design research on the Maverick X project, and years of athlete testing and feedback.

The Viper X swimskin is USAT and WTC legal and continues to utilize two varieties of the same premium stretch-woven textile from Italy, a hydrophobic Teflon® coating, high-tech bonded seam construction with novel hidden stitch reinforcement, a low profile autolocking YKK zipper. It is strategically designed with a pattern and panel layout that liberates your arms while providing support where you need it. All of these little details add up to free speed on race day. The Viper X comes in black only, with “magma" graphics for men and “spark" graphics for women.

If you have a non-wetsuit race on your calendar, the ROKA Viper X offers the ultimate in swimskin performance. In 2015, almost 25% of the athletes at Kona wore Viper swimskins – more than any other brand.

VIPER SWIMSKIN Size Chart

Viper X note: Because of the compression taping throughout, the Viper X may run small compared to other Viper styles. If you are on the border of a size, we recommend you size up.

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.
Select Your Height
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
L
5'5"
125 - 129 LBS
XS
130 - 134 LBS
XS
135 - 139 LBS
S
140 - 144 LBS
S
145 - 149 LBS
M
150 - 154 LBS
M
155 - 159 LBS
L
160 - 164 LBS
L
165 - 169 LBS
L
5'6"
125 - 129 LBS
XS
130 - 134 LBS
XS
135 - 139 LBS
XS
140 - 144 LBS
S
145 - 149 LBS
M
150 - 154 LBS
M
155 - 159 LBS
L
160 - 164 LBS
L
165 - 169 LBS
L
170 - 174 LBS
L
175 - 179 LBS
L
180 - 184 LBS
XL
5'7"
125 - 129 LBS
XS
130 - 134 LBS
XS
135 - 139 LBS
XS
140 - 144 LBS
S
145 - 149 LBS
M
150 - 154 LBS
M
155 - 159 LBS
M
160 - 164 LBS
L
165 - 169 LBS
L
170 - 174 LBS
L
175 - 179 LBS
L
180 - 184 LBS
XL
185 - 189 LBS
XL
190 - 194 LBS
XL
5'8"
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
L
170 - 174 LBS
L
175 - 179 LBS
L
180 - 184 LBS
L
185 - 189 LBS
XL
190 - 194 LBS
XL
195 - 199 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
L
170 - 174 LBS
L
175 - 179 LBS
L
180 - 184 LBS
L
185 - 189 LBS
L
190 - 194 LBS
XL
195 - 199 LBS
XL
200 - 204 LBS
XL
205 - 209 LBS
XXL
5'10"
125 - 129 LBS
S
130 - 134 LBS
S
135 - 139 LBS
S
140 - 144 LBS
S
145 - 149 LBS
S
150 - 154 LBS
M
155 - 159 LBS
M
160 - 164 LBS
M
165 - 169 LBS
M
170 - 174 LBS
L
175 - 179 LBS
L
180 - 184 LBS
L
185 - 189 LBS
L
190 - 194 LBS
L
195 - 199 LBS
XL
200 - 204 LBS
XL
205 - 209 LBS
XXL
210 - 214 LBS
XXL
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
MT
170 - 174 LBS
L
175 - 179 LBS
L
180 - 184 LBS
L
185 - 189 LBS
L
190 - 194 LBS
L
195 - 199 LBS
XL
200 - 204 LBS
XL
205 - 209 LBS
XL
210 - 214 LBS
XXL
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
L
180 - 184 LBS
L
185 - 189 LBS
L
190 - 194 LBS
L
195 - 199 LBS
XL
200 - 204 LBS
XL
205 - 209 LBS
XL
210 - 214 LBS
XXL
215 - 219 LBS
XXL
6'1"
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
L
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
XXL
220 - 224 LBS
XXL
6'2"
145 - 149 LBS
ST
150 - 154 LBS
ST
155 - 159 LBS
ST
160 - 164 LBS
ST
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
XL
205 - 209 LBS
XL
210 - 214 LBS
XL
215 - 219 LBS
XXL
220 - 224 LBS
XXL
6'3"
150 - 154 LBS
ST
155 - 159 LBS
ST
160 - 164 LBS
ST
165 - 169 LBS
MT
170 - 174 LBS
MT
175 - 179 LBS
MT
180 - 184 LBS
MT
185 - 189 LBS
MT
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
6'4"
165 - 169 LBS
MT
170 - 174 LBS
MT
175 - 179 LBS
MT
180 - 184 LBS
MT
185 - 189 LBS
MT
190 - 194 LBS
LT
195 - 199 LBS
LT
200 - 204 LBS
LT
205 - 209 LBS
LT
210 - 214 LBS
XL
215 - 219 LBS
XL
220 - 224 LBS
XL
225 - 229 LBS
XXL
6'5"
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
LT
210 - 214 LBS
LT
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
LT
210 - 214 LBS
LT
215 - 219 LBS
XL
220 - 224 LBS
XL
225 - 229 LBS
XL
230 - 240+ LBS
XXL
Select Your Height
163cm
57 - 59 KG
XS
59 - 61 KG
S
61 - 63 KG
S
63 - 65 KG
M
66 - 68 KG
M
68 - 70 KG
L
165cm
57 - 59 KG
XS
59 - 61 KG
XS
61 - 63 KG
S
63 - 65 KG
S
66 - 68 KG
M
68 - 70 KG
M
70 - 72 KG
L
72 - 74 KG
L
75 - 77 KG
L
168cm
57 - 59 KG
XS
59 - 61 KG
XS
61 - 63 KG
XS
63 - 65 KG
S
66 - 68 KG
M
68 - 70 KG
M
70 - 72 KG
L
72 - 74 KG
L
75 - 77 KG
L
77 - 79 KG
L
79 - 81 KG
L
82 - 84 KG
XL
170cm
57 - 59 KG
XS
59 - 61 KG
XS
61 - 63 KG
XS
63 - 65 KG
S
66 - 68 KG
M
68 - 70 KG
M
70 - 72 KG
M
72 - 74 KG
L
75 - 77 KG
L
77 - 79 KG
L
79 - 81 KG
L
82 - 84 KG
XL
84 - 86 KG
XL
86 - 88 KG
XL
173cm
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
L
77 - 79 KG
L
79 - 81 KG
L
82 - 84 KG
L
84 - 86 KG
XL
86 - 88 KG
XL
88 - 90 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
L
77 - 79 KG
L
79 - 81 KG
L
82 - 84 KG
L
84 - 86 KG
L
86 - 88 KG
XL
88 - 90 KG
XL
91 - 93 KG
XL
93- 95 KG
XXL
178cm
57 - 59 KG
S
59 - 61 KG
S
61 - 63 KG
S
63 - 65 KG
S
66 - 68 KG
S
68 - 70 KG
M
70 - 72 KG
M
72 - 74 KG
M
75 - 77 KG
M
77 - 79 KG
L
79 - 81 KG
L
82 - 84 KG
L
84 - 86 KG
L
86 - 88 KG
L
88 - 90 KG
XL
91 - 93 KG
XL
93- 95 KG
XXL
95 - 97 KG
XXL
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
MT
77 - 79 KG
L
79 - 81 KG
L
82 - 84 KG
L
84 - 86 KG
L
86 - 88 KG
L
88 - 90 KG
XL
91 - 93 KG
XL
93- 95 KG
XL
95 - 97 KG
XXL
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
L
82 - 84 KG
L
84 - 86 KG
L
86 - 88 KG
L
88 - 90 KG
XL
91 - 93 KG
XL
93- 95 KG
XL
95 - 97 KG
XXL
97 - 99 KG
XXL
185cm
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
L
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
XXL
100 - 102 KG
XXL
188cm
66 - 68 KG
ST
68 - 70 KG
ST
70 - 72 KG
ST
72 - 74 KG
ST
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
XL
93- 95 KG
XL
95 - 97 KG
XL
97 - 99 KG
XXL
100 - 102 KG
XXL
191cm
68 - 70 KG
ST
70 - 72 KG
ST
72 - 74 KG
ST
75 - 77 KG
MT
77 - 79 KG
MT
79 - 81 KG
MT
82 - 84 KG
MT
84 - 86 KG
MT
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
193cm
75 - 77 KG
MT
77 - 79 KG
MT
79 - 81 KG
MT
82 - 84 KG
MT
84 - 86 KG
MT
86 - 88 KG
LT
88 - 90 KG
LT
91 - 93 KG
LT
93- 95 KG
LT
95 - 97 KG
XL
97 - 99 KG
XL
100 - 102 KG
XL
102 - 104 KG
XXL
196cm
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
LT
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
LT
95 - 97 KG
LT
97 - 99 KG
XL
100 - 102 KG
XL
102 - 104 KG
XL
104 - 109+ KG
XXL
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