MEN'S Viper X2 Short Sleeve Swimskin

Meet the reimagined, better-than-ever Viper X2 Short Sleeve Swimskin, and wave goodbye to drag.

We weren’t satisfied with just creating the fastest, most popular swimskin on the planet, so we went back to the drawing board and upped our game. The result is the Viper X2, a swimskin that keeps everything you loved about the original—our patented ARMS UP™ technology, patented IXI taping, silicone leg grippers—and adds a new compression zone in the lower back that provides improved core support, promotes better posture and reduces drag by eliminating bubbling of the fabric in the small of your back.

The Viper X2 Short Sleeve is USAT and IRONMAN legal, and it fully covers your short sleeve tri suit on the swim to reduce friction and drag in the water. The suit is built with a premium Italian stretch-woven fabric and includes a hydrophobic Teflon coating, high-tech bonded seam construction with hidden-stitch reinforcement, as well as a low profile auto-locking YKK zipper.

FRONT

ARMS UP™ SHORT-SLEEVE CONSTRUCTION

Our revolutionary patented ARMS UP™ technology eliminates restriction allowing you to swim faster and more efficiently.

Specialized gusset pattern through armpit

Enhances mobility and greatly reduced irritation throughout the swim.

Floating neck Suspension

Increases mobility and prevents chafing on the neck.

ITALIAN-WOVEN TEXTILE

Bonded with a high-tech seam construction and novel hidden stitch reinforcement.

SILICONE LEG GRIPPER

Printed silicone leg grippers on the inside of the leg opening for a straight seam cut and no sausage leg.

Auto-locking YKK zipper

Premium YKK breakaway reversed #3 coil zip designprovides an easy removal exiting the swim.

Adjusted shoulder panel seams

Liberates your arms while providing support where you need it most.

NEW CORE COMPRESSION ZONE

An updated lower back panel provides enhanced core compression, better support and improved posture in the water. It also reduces the bubbling effect of the fabric in the small of your back to eliminate drag.

IXI TAPING

Our patented IXI Taping helps connect the movements of your lower body to your core and arms to increase the efficiency and power transfer of your stroke.

Hydrophobic Technology

Teflon coating repels water and reduces drag and water absorption.

BACK

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.

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

Up to 35% off, now THRU Sept 7