Name: Men's Summit Aero Mesh LS Jersey
Brand: Pactimo
SKU: P112403AltusBSGS2610AeroL
Price: 177.0 USD
Availability: InStock

See Reviews

$177

Designed for hot, high-output days, this fully mesh aero jersey keeps you cooler with 37.5® active-cooling and keeps your gear secure with reinforced, no-sag pockets. A smooth, semi-locking YKK zipper allows quick, controlled ventilation anytime you need it.

"Pactimo 37.5 Collection – the Forecast Calls for Comfort"
Read the Bike Oregon Review »

Color — Altus Black-Spring Green

Altus Mountain Twilight-Alpine Deep

Altus Black-Spring Green

Fit

Size

The Summit Aero Mesh Jersey is engineered for warm-weather performance and long-distance riding. Made entirely from lightweight stretch mesh with 37.5® active-cooling technology , it helps regulate body temperature by pulling humidity away from the skin—keeping you cooler, drier, and more efficient on every mile. (Independent University of Colorado research has shown 37.5® can increase athletic output by up to 25%.)

Mesh sleeves and a YKK Vislon semi-locking zipper provide excellent ventilation and easy, one-handed venting on the fly. A reinforced back panel prevents pocket sagging, while three full-size pockets with expanding bottom bellows offer secure storage for ride essentials. A zippered valuables pocket with a glove-friendly pull keeps cards, keys, and cash protected.

A lightweight mesh gripper hem holds the jersey in place, and powerful 350-lumen reflective accents ensure 360º visibility when the light fades.

The result: a highly breathable, fast-drying, high-performance warm-weather jersey built to go long.

• Lightweight mesh with 37.5® Technology for active cooling
• Euro-length mesh sleeves
• YKK Vislon semi-locking zipper
• Reinforced back design to prevent pocket sagging
• Lightweight mesh gripper hem
• 3 full-size pockets with expanding bottom bellows
• Zippered valuables pocket with glove friendly pull
• Powerful reflective strips (350 lumens) ensures 360º reflectivity

Free USA Shipping on $99+ orders

Free USA Returns + Exchanges

{"id":45307020116147,"title":"Altus Black-Spring Green \/ Aero \/ L","option1":"Altus Black-Spring Green","option2":"Aero","option3":"L","sku":"P112403AltusBSGS2610AeroL","requires_shipping":true,"taxable":true,"featured_image":{"id":39678804623539,"product_id":8432999694515,"position":1,"created_at":"2026-02-25T15:12:41-07:00","updated_at":"2026-02-25T15:12:58-07:00","alt":null,"width":1280,"height":1920,"src":"\/\/www.pactimo.com\/cdn\/shop\/files\/MSummitAeroMeshLSJerseyAltusBlackSpringGreen-3_1a7b2e12-ba87-4fab-bbb3-8d13590125cb.jpg?v=1772057578","variant_ids":[45307020050611,45307020083379,45307020116147,45307020148915,45307020181683,45307020214451]},"available":true,"name":"Men's Summit Aero Mesh LS Jersey - Altus Black-Spring Green \/ Aero \/ L","public_title":"Altus Black-Spring Green \/ Aero \/ L","options":["Altus Black-Spring Green","Aero","L"],"price":17700,"weight":0,"compare_at_price":null,"inventory_quantity":4,"inventory_management":"shopify","inventory_policy":"deny","barcode":"729859790114","featured_media":{"alt":null,"id":31103630114995,"position":1,"preview_image":{"aspect_ratio":0.667,"height":1920,"width":1280,"src":"\/\/www.pactimo.com\/cdn\/shop\/files\/MSummitAeroMeshLSJerseyAltusBlackSpringGreen-3_1a7b2e12-ba87-4fab-bbb3-8d13590125cb.jpg?v=1772057578"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}

Ultimate in breathability, performance and comfort

Active Cooling Mesh Fabric

What sets this jersey apart from all the others is the use of woven Cocona particles from 37.5® Technology. Those incredible, little particles attract humidity and use your body heat to rapidly transfer perspiration from the interior to the exterior of the garment. This rapid transfer of moisture ensures a regulated body temperature and can increase athletic performance by as much as a 25%.

Mesh Sleeves

The form fitting mesh sleeves are an aerodynamic, no flap fit and also include 37.5® Technology. Mesh in back panels helps regulate body temperature.

Semi-Auto Locking Zipper

The biggest advantage of a locking zipper is the ability for the wearer to singlehandedly unzip and open their jersey for venting. Merely flip the pull up to unlock the zipper. Then, with one hand, the jersey can be pulled open. Flip the pull back down to lock the zipper pull in place.

Zippered Pocket

With three extra-wide rear pockets with expanding, bottom bellows and a zippered valuables pocket.

The Active Cooling from 37.5® Technology Increases Athletic Performance By Up to 26%

"Wearing a combination of a 37.5 jersey and base layer is the equivalent of wearing an ice vest when it comes to enhanced individual performance." — Preston Brin, 37.5®

In a study done by scientists at the University of Colorado Boulder, thermoregulation clothing with 37.5 Technology was scientifically proven to increase athletic performance by up to 26% by reducing the increase of core temperature during activity. Proven to decrease the rate of core temperature buildup and keep you cool more effectively than wicking. Scientifically proven to increase stamina by reducing the amount of energy used to manage core temperature. Proven to increase efficiency so you use less energy to do the same amount of work.

Learn more about 37.5®