---
source_url: "https://asrv.com/products/1142-polartec-delta-longsleeve-black"
title: "1142. Polartec® Delta Longsleeve - Black – ASRV"
mirrored_at: 2026-08-06T01:05:02.377Z
host: asrv.com
cited_in_42a: true
mirror_canonical: "https://index.42a.ai/asrv.com/products/1142-polartec-delta-longsleeve-black"
---

> **Original source:** https://asrv.com/products/1142-polartec-delta-longsleeve-black

Lightweight training longsleeve engineered with Polartec® Delta, a cooling fabric that leverages specialized radiators and hydrophobic/hydrophilic fibers to increase airflow, regulate drying, and extend the body’s natural heat-dissipation during high-output training.

Raglan sleeves and flatlock construction create an ergonomic, low-friction fit that moves cleanly through dynamic ranges of motion. Staggered side splits and a dropped back hem enhance mobility and maintain coverage during sprints, lifts, and conditioning work.

Finished with ASRV branding, reflective detailing at the hem, and reinforced bartacks for long-term durability.

_Model is 6’1, 185lbs and is wearing a size L._