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Alpinestars Thermal Tech Top

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Alpinestars Thermal Tech Top

The Alpinestars Thermal Tech top is part of Alpinestars range of base layer underwear developed for layering purposes to provide core temperature regulation and comfort for all types of riding conditions. The Warm Tack base fabric used for the top is Nano treated to increase circulation of the capillaries to promote warmth. The fabric is also treated to wick away moisture and keep the body comfortable. The compression fit reduces muscle fatigue in the upper body increasing riding comfort


  • Developed for cold weather riding conditions
  • Warm Tack fabric construction
  • Fiber is a stretch Nylon, Nano treated for effective heat conductivity and moisture wicking
  • Ergonomic flat lock seam construction
  • Compression fit design to reduce muscle fatigue in the top.
  • Printed ASTAR logo

Men's Base Layer Top Sizing

Euro USA Alpha Chest (cm) Waist (cm) Hip (cm) Arm (cm) Height (cm)
42 32 2XS 82-86 68-72 83-87 51-52 159-163
44 34 2XS-XS 86-90 72-76 87-91 53-54 164-167
46 36 XS-SM 90-94 76-80 91-95 55-56 168-171
48 38 SM-MD 94-98 80-84 95-99 57-58 172-175
50 40 MD 98-102 84-88 99-103 59-60 176-179
52 42 LG 102-106 88-92 103-107 61-62 180-183
54 44 XL 106-110 92-96 107-111 63-64 184-187
56 46 XL-2XL 110-114 96-100 111-115 65-66 188-191
58 48 2XL 114-118 100-104 115-119 67-68 192-195
60 50 3XL 118-122 104-108 119-123 67-68 192-195
62 52 3XL-4XL 122-126 108-112 123-127 69-70 196-199
64 54 4XL 126-130 112-116 127-131 69-70 196-199

Note: Alpinestars sizes displayed on our website are in Euro sizing, use the chart above to convert your standard US size to Euro. 

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

Click here to see the full Alpinestars Size Chart
Product Style RevZilla Item # Manufacturer Product # Availability
Black / SM 439444 475349-10-S/29400086 In Stock: Ships within 24 hours
Black / MD 439445 475349-10-M/29400087 Out of Stock
Black / LG 439446 475349-10-L/29400088 Out of Stock
Black / XL 439447 475349-10-XL/29400089 Out of Stock
Black / 2XL 439448 475349-10-2XL/29400090 In Stock: Ships within 24 hours
Black / 3XL 439449 475349-10-3XL/29400091 In Stock: Ships within 24 hours


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We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

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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.

See our full Return Policy for all of the pertinent details.

Write a Product Review for a chance to win our monthly $100 giveaways.
Alpinestars Thermal Tech Top 5 5 1 1
Great for layering set of these along with a set of thermals on under jeans and you are perfect for the colder months. February 26, 2014
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Have a functionality, fit, or otherwise product-specific question about the Alpinestars Thermal Tech Top? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

Alpinestars Thermal Tech Top
Already Asked: 2 Questions, 3 Answers
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RevZilla Store asked: Why did you choose this?
Wayne M: Friend needs to stay warm when riding in cooler weather...so, now he has no excuse for it being too cold! And, the price was right! Dec 20, 2014
Kevin H: Needed something to keep the wind off of my arms, since my jacket only came with a vest for a liner. I also like being able to dress in layers, since it's always 20-30 degrees warmer in the afternoon. Nov 8, 2013
A shopper asked: I currently have the Alpinestars T-GP R Air jacket, I like the jacket but when it is a little chilly out the wind is a killer. Just trying to find something that will help break the wind and keep me a little warmer. Mar 25, 2012
Answer this · Send to friends Good question? Yes (0) No (0)
Stevan P: This is more of a base layer for warmth and might not block the wind to the degree you hope. We might suggest the Alpinestars Touring Underwear Mid-Layer Top that features windproof material construction. Might help on those chilly mornings! Mar 29, 2012
Reply to Stevan Good answer? Yes (0) No (0)