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Alpinestars Summer Tech Race Undersuit
  • Alpinestars Summer Tech Race Undersuit - Black
  • Alpinestars Summer Tech Race Undersuit - Black

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Alpinestars Summer Tech Race Undersuit Videos

Alpinestars Summer Tech Race Undersuit

Anyone who has ever worn one knows that race suits are hot no matter how perforated they are. In order to keep you suit from turning into a slimy mess, the Alpinestars Summer Tech Race Undersuit is designed to give you a moisture wicking lining that keeps you cool and your suit from getting funky.. Available as a 1-piece undersuit.


  • Designed for warm weather riding
  • Coldtack fabric construction
  • Micro perforated insert panel for comfort and breathability
  • Ergonomic flat lock seam construction
  • Compression fit design to reduce muscle fatigue
  • Off-set main zipper closure
  • Printed Astar logo
  • Leaf not included

Alpinestars Men's Base Layer Sizing

Euro Alpha US Pant Size Chest (cm) Waist (cm) Hips (cm) Thigh (cm) Inseam (cm) Arm (cm) Height (cm)
44 XS 28 86-90 72-76 87-91 52-53 75-76 53-54 164-167
46 SM 30 90-94 76-80 91-95 54-55 77-78 55-56 168-171
48 SM-MD 32 94-98 80-84 95-99 56-57 79-80 57-58 172-175
50 MD-LG 34 98-102 84-88 99-103 58-59 81-82 59-60 176-179
52 LG 36 102-106 88-92 103-107 60-61 83-84 61-62 180-183
54 XL 38 106-110 92-96 107-111 62-63 85-86 63-64 184-187
56 XL-2XL 40 110-114 96-100 111-115 64-65 87-88 65-66 188-191
58 2XL 42 114-118 100-104 115-119 66-67 89-90 67-68 192-195

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How To Measure

C Chest Measure around the fullest part of your chest, under the armpits, keeping the measuring tape parallel to the ground.
W Waist Measure around your natural waistline, around the top of the hip bones, inline with the navel while keeping the measuring tape parallel to the ground.
HP Hips Measure the circumference, from pelvic bone to pelvic bone, at the widest part of your hips below the waist.
I Inseam Measure from the highest point of your crotch down to your ankle, along your inner leg.
H Height With no shoes on, stand with your back against a wall and your feet together. Measure from the floor to the top of your head.
A Arm (Shoulder to Wrist) Standing up straight with your arms at your sides, measure from the Acromion or summit of your shoulder, down to your wrist bone, along the outside of the arm.
T Thigh Measure the circumference of your thighs at the widest point, while in a seated position, with your knees bent to a 90° angle.
Product Style RevZilla Item # Manufacturer Product # Availability
Black / SM 304073 475208-10-S/29400080 In Stock: Ships within 24 hours
Black / MD 304074 475208-10-M/29400081 In Stock: Ships within 24 hours
Black / LG 304075 475208-10-L/29400082 In Stock: Ships within 24 hours
Black / XL 304076 475208-10-XL/29400083 In Stock: Ships within 24 hours
Black / 2XL 304077 475208-10-2X/29400084 In Stock: Ships within 24 hours
Black / 3XL 304078 475208-10-3X/29400085 In Stock: Ships within 24 hours


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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

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Alpinestars Summer Tech Race Undersuit 4.7 5 37 37
Fits small. Works great! The first day was different... the second day and after I washed it the suit fired better. July 5, 2016
Great quality from A-Stars, but not the right thing for my purpose First, let me say that the quality of this undersuit is excellent as expected, and it's fairly easy to get on & off, and is comfortable to the skin. HOWEVER: I bought it for the purpose of making it easier to slip into & out of my 1-piece leathers, which although the ad suggested this would help with, it does not for me. It is not slick enough material to really make any difference in ease of getting into & out of my suit. I have always worn a long sleeve compression shirt (by a very popular sports clothing brand that would be a synonym of "Below Protection"). That material truly does make it easy to get into and out of the suit; sweating or dry. Bottom line is that if you just want an undersuit that protects you from skin abrasions from rough spots inside leathers, this undersuit would be perfect, but in my case at least, it's not the thing I need. July 5, 2016
Alpinestars Summer Undersuit This is a must have to wear under leather. Awesome suit with high performance cooling, wicking and compression elements built in. Get one today from Revzilla, worth every penny!! This is light years ahead of what you may think is Under Armor material. I'm 5'8" at 150lbs and a medium fits perfectly. June 28, 2016
Do not overheat on the track anymore! First time I wore this suit it was 90+ degrees out. This base layer kept me cool and dry all day. June 14, 2016
Great!!!! I wear this suit under full leathers. It makes it much easier to put on and take off. I am 5' 10 , 200 lbs and 49 in waist and wear size XL. Fit is very good, material is very stretchy. I wash the undersuit in cold water after every use. It gets hot in Texas. June 6, 2016
What you need under your full suit Fits great and is awesome under suit! If you wear a one piece suit, you need this in your life October 5, 2015
Nice fit I usually wear XL in shirts because I like a loose fit. I purchased this suite in medium because I wanted an almost skin tight fit to stay in place and not roll up underneath my race suite. The medium fit was perfect for me. Tight but not too tight, it feels comfortable like wearing comperssion fit clothing July 16, 2015
Comfortable Works well under the race suit. Stretch material is comfortable. May 26, 2015
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