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Klim Summit LS Tech T-Shirt
  • Klim Summit LS Tech T-Shirt - Grey
  • Klim Summit LS Tech T-Shirt - Grey
  • Klim Summit LS Tech T-Shirt - Red
  • Klim Summit LS Tech T-Shirt - Blue

Please select a Color and Size to check availability, or to add this item to your Shopping Cart or Wish List.

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Video Review

Klim Summit LS Tech T-Shirt Videos

Klim Summit Long Sleeve Tech Tee

The men’s Summit Tech T is designed as a performance-riding base or mid-layer shirt. Its polyester micro-grid knit main body fabric and stretch panels of poly/spandex fabric make it ideal for all riding duties. Don’t compromise your layering system with a cotton t-shirt, choose a Tech T and stay drier and more comfortable all day. Anti-microbial sweat zones fight the funk of the hardest rides, while its anti-piling 4-way stretch fabrics keep it looking and fitting perfect ride after ride. 


  • Hyper-wicking micro grid polyester knit main body material
  • Massive stretch zones of poly/Spandex blend fabric
  • Highly moisture wicking and fast drying
  • Anti-microbial for less stink
  • Four-way, anti-pilling stretch properties
  • Tagless


We highly recommend finding a cloth tape measure and taking the time to take these measurements.  Klim sizes will not necessarily correlate with fitment in other brands.

Klim Men's Base/Mid Layer Top Sizing:

Size Chest (in) Sleeve Length (in)
XS 32 - 34 24 - 25
SM 35 - 37 26 - 27
MD 38 - 40 28 - 29
LG 41 - 43 30 - 32
XL 44 - 47 33 - 34
2XL 48 - 51 35 - 36
3XL 52 - 55 37 - 38

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

Click here to see the full Klim Size Chart
Product Style RevZilla Item # Manufacturer Product # Availability
Grey / SM 842913 6111-001-120-600 In Stock: Ships within 24 hours
Grey / MD 842916 6111-001-130-600 In Stock: Usually ships in 2-3 business days
Grey / LG 842919 6111-001-140-600 In Stock: Usually ships in 2-3 business days
Grey / XL 842922 6111-001-150-600 Out of Stock
Grey / 2XL 842925 6111-001-160-600 In Stock: Ships within 24 hours
Grey / 3XL 842928 6111-001-170-600 Out of Stock
Red / SM 842911 6111-001-120-100 In Stock: Ships within 24 hours
Red / MD 842914 6111-001-130-100 Out of Stock
Red / LG 842917 6111-001-140-100 Out of Stock
Red / XL 842920 6111-001-150-100 Out of Stock
Red / 2XL 842923 6111-001-160-100 Out of Stock
Red / 3XL 842926 6111-001-170-100 Out of Stock


Orders $39.99 and over qualify for our fast free shipping offer. Click Here for FREE Shipping Terms and Conditions.

Please see our International Orders page for orders shipping outside the US.

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.

See our full Shipping Policy for further details.


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.
Klim Summit LS Tech T-Shirt 4.5 5 12 12
Excellent All-purpose Mid-layer I just completed a week long road trip and exclusively wore these shirts. I rode in temperatures from 34 to 104F. This paired with my Klim Badlands jacket kept me comfortable above 50 and adding a mid-weight fleece down to 34. Sizing - The shirt is true to size, but I went one size up to wear jersey style. Easy care - Wash and fast drying allowed me to get by with less clothing. Value - I bought them on sale so it was a great value. Regular price will still get my business in the future. Highest recommendation September 21, 2015
Solid undershirt Great shirt all the way around - breathes well as advertised! July 6, 2015
Excellent mid-layer that can be used off the bike It works well as the mid-layer over base layer with my Badlands Pro jacket, or as a standalone shirt/jersey off the bike. It is warm and comfortable. June 24, 2015
Nice shirt, not for hot weather I bought this Klim long sleeved t-shirt thinking it would make a good base or mid-layer shirt for warm weather. However, it was much thicker than expected. It should make a warm mid-layer for cooler temps. June 1, 2015
Not for warm weather This is definitely a very good layer for temperatures under 60F. Above that and it gets too toasty. It is extremely comfortable under your jacket and fits as advertised. April 20, 2015
Nice riding underwear. Comfortable and not dorky. These work well in NorCal. March 2, 2015
Stylish Base Layer I purchased the Summit for its style and features. I do not like zippers and wanted a base layer that was more beefy than the Aggressor Base layer (which I own too). The shirt runs small in my opinion for I ordered the same size that I wear in the Aggressor and it was too small and had to return it. Otherwise it is a good choice for someone that wants a base layer that can be bumped up to a mid layer for extra warmth and look good too. December 18, 2014
An enigma of a shirt This shirt is a marvel of science. In hot weather it wicks away sweat and quickly dries you off yet in cold weather it keeps you warm. No idea how they managed all of this in one shirt but I'm glad they did. I'm 6' 3" and would like to have another inch in length due to the fact when I bend over it untucks itself. When riding I really like to keep my shirt tucked in but for my height this is almost perfect. (Not a deal breaker; I will buy another one soon.) Best part is when I walk around with my jacket off this thing breathes and as an added bonus looks good. Whether I'm wearing my leather jacket or my winter waterproof textile jacket, I won't be out riding without this shirt. September 22, 2014
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Have a functionality, fit, or otherwise product-specific question about the Klim Summit LS Tech T-Shirt? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

Klim Summit LS Tech T-Shirt
Already Asked: 1 Question, 10 Answers
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RevZilla Store asked: Why did you choose this?
Andy L: Price is right for a good base layer riding shirt Nov 20, 2015
Rod M: Great deal on a great product name Sep 13, 2015
charles m: I just love klim products they are very sturdy and reliable. Aug 30, 2015
Scott C: Have Klim pants and jacket and tech underwear.
Love the Klim products
Apr 26, 2015
Ken B: Sure I felt like a modern robot dude when I donned this shirt but I wear it under my jacket and its a great base layer, has held up very well through a dozen or so visits to the washing machine. I now speak modern robot as well. Apr 2, 2015
Scot P: Great base layer for under the Badlands Pro Jacket. Cool in summer and warm in the winter, very comfortable. I bought three more after trying the first shirt. Mar 8, 2015
Cindy K: Purchased as a gift for son-in-law who is an avid motorcycle rider, snowmobiler, and snowboarder who has always wanted Klim apparel. Dec 13, 2014
S T: Wanted something other than a cotton T shirt to wear under my bike jacket and which looks presentable on its own. Sep 27, 2014
Chris B: I chose this to wear under my rain suit and it has done an admirable job keeping me warm in the cold rain. Mar 20, 2014