Base Layer - Zero-Weight Base Layer Men&
Base Layer - Zero-Weight Base Layer Men&
Base Layer - Zero-Weight Base Layer Men&
Base Layer - Zero-Weight Base Layer Men&
Base Layer - Zero-Weight Base Layer Men&
Base Layer - Zero-Weight Base Layer Men&
Base Layer - Zero-Weight Base Layer Men&
Base Layer - Zero-Weight Base Layer Men&

Men's Zero-Weight SS Base Layer

119 reviews
Regular price$47.00
Shipping calculated at checkout.

  • In stock, ready to ship
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  • Free Shipping on Orders $70+

OVERVIEW: This ultra-lightweight, super stretchy base layer has been designed to provide a performance form fit and optimal moisture transfer and heat regulation during warm weather rides. The honeycomb structure of the knit not only wicks perspiration away from the skin but it also facilitates air movement between the jersey and base layer which speeds evaporation and cooling. Only 55 grams in a size medium. 


  • Zero-Weight mesh (93% Polyester / 7% Spandex)
  • Honeycomb texture to maximize wicking performance
  • Next to skin form-fit design

Have questions about sizing,
fit or garment usage?

Don't hesitate to contact us.
We are here to help and answer all your questions!

877-291-6238   |

Pactimo Cycling Clothing Size Chart

Kid's Cycling Clothing Size Chart

Not all garments are available in every size listed on size charts.

Arm, Knee and Leg Warmer Sizes

Shoe Cover Size Chart

Custom cycling sock size chart

Cycling Glove Size Chart

Measuring Tips 


Using a soft measuring tape, bring the tape across your back under each arm, around the front. For women, measure the widest point of the bust. For men, measure around the largest part of your chest.


Bend to one side to find natural indentation in torso. This is your natural waist. Run tape around waistline, keeping tape parallel with floor. 


Stand on a level surface with feet together. Measure around fullest part of hips and bottom (approximately 7" - 9" below waistline), keeping tape parallel with floor.



Typically delivers in 3-5 business days
(Standard Shipping Option)


USPS Priority

1-3 business days.

USPS Priority Service Map

USPS Shipping Map

USPS Priority Express

1-2 business days.

* Please note: All orders placed after 8 am will be fulfilled the following business day.

FedEx 2-Day Shipping

Arrival in 2 business days.

* Please note: Orders placed after 11 am will be fulfilled the following business day.


Additional Information for USA Orders

All orders must be shipped within the USA, Puerto Rico or an APO.
At this time we do not offer shipping to Canada.

All Made-to-Order (MTO) and Jersey for a Cause items are delivered 14-16 days from the date of purchase via FedEx Express. Please note that FedEx cannot deliver to PO Boxes. If you order an MTO item and use a PO Box, your order will be shipped to our Denver office and forwarded to the PO Box via USPS. 

PLEASE NOTE: Information on this page does not apply to custom clothing orders.
For information about Pactimo Custom, please visit


Customer Reviews
4.8 Based on 119 Reviews
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Chih H.
United States United States
Better than I think

Feel need to chosen a larger size when first try but feel perfect when couple ride.

Russell G.
United States United States
Love these base layers

It was time to replace my existing base layers from Pactimo. I had been using them for about 3 years now

65Derek H.
United States United States
Bought two more!

I have had one base layer for a year. Use all the time in cold, cool, warm, hot, dry or wet days. So happy with I bought to more. I’m 5’5” male 145 pounds, say I’m barrel chested, wear size medium. It’s like a second skin. Really like my see though ultra lite rain jacket too!

Terry B.
United States United States
Men's Zero-Weight SS Base Layer

Great! In hot weather and proper fit (skin tight) cools like a refrigerator while riding.

Bill W.
United States United States
Men's Zero-Weight SS Base Layer

Way too small. I ordered a M. I am 154lbs 5'7" tall. It was too snug.

David C.
United States United States
Men’s Zero-Weight SS Base Layer

This is the 4th Zero-Weight Base Layer I’ve purchased from Pactimo. They are great at wicking sweat from my torso and keeping me cool on summer riders in Florida. After the excellent performance of the first one I quickly ordered 3 more.

Nicholas K.
United States United States

I continue to rely on the zero-weight short-sleeve base layer for my indoor training rides (for comfort and cooling) as well as for my early morning summer rides. Layered under a breathable jersey, this base layer functions perfectly to buffer a bit more wind chill in the early morning hours, while still remaining breezy and wicking when the late-morning temps rise.

Fraser M.
United States United States
Nice but runs a little small

Overall I like the base layer. At 6'1" and 155 lbs I usually wear a large in Pactimo base layers and jerseys but this one felt very tight and a little short. The XL fits better. As described it's very thin and best with hotter weather.

Chris M.
United States United States
Zero wgt Base Layer

Extremely lightweight and true to fit. I have been using for indoor riding.

Christopher S.
United States United States
Adds some warmth

I know this is intended as a "summer" base layer, but in the humid southeast I find it works best for moderate spring/fall days when you need a little something beyond your typical summer race jersey. I skip this layer on warm/hot days.

Will J.
United States United States
Men's Zero-Weight Base Layer

I immediately returned due to fit. I wear a size small in every other base layer, compression base layer brand I have ever worn. I own quite a bit of gear from Pactimo and it is all top notch. Wanted to add the Pactimo base layers to my collection. Not this piece however. The base layer did not even reach down to my waist, and the neck opening was quite large - almost out to my shoulders. Very awkward fit. Not sure a size medium would solve the fit issues. Couldn't return fast enough.

Thomas S.
United States United States
Very satisfied!

This base layer is just right for most weather conditions.

Nathan G.
United States United States
Zero Weight Base Layer

I used this on a colder ride just to try it out and I could already tell this helps improve ventilation and I'm excited to try it out when it warms up again!

Pete C.
United States United States
Great base layer

Very breathable. Great for all temps down to about 50 degrees (F). I prefer the thermal base layer below 50(F). Fits true to size. A bit longer in the torso than the thermal base layer. Also, a wider neck opening which is nice in the hotter temps.

Kyle M.
United States United States
Breathable Base Layer

Really like the short sleeve base layer, the sleeves do not stick out your jersey and you don't have to worry about added pressure in the arm pit that some brands sleeveless base layers cause. It is also very lightweight and breathable as the name suggests!

Andrew T.
United States United States
Good base layer.

This is my lightest-weight base layer and now one of my go-tos on hot summer days (it took me years to learn the magic of a summer base layer). Sizing is tight for the next to skin feel, but this means the base layer fits nicely under my jersey and doesn't wrinkle. My only complaint is I find this hard to clean, odor seems to be an issue for me :-/

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