
RUNNR CoreFlex™ Quarter-Zip — Lightweight Training Pullover
Your go-to layer for every season.
The RUNNR CoreFlex Quarter-Zip combines lightweight breathability with a sleek athletic fit — keeping you dry, comfortable, and focused during every run, ride, or workout.
✅ Quick-dry, sweat-wicking fabric
✅ 4-way stretch for full mobility
✅ Quarter-zip design for adjustable ventilation
✅ Ideal for running, gym, or casual wear
💥 Now 70% OFF + free worldwide shipping!

Move Freely. Train in Comfort.
The RUNNR CoreFlex Quarter-Zip is engineered for performance — a perfect balance between warmth and breathability. Its technical fabric keeps moisture away, while the streamlined cut moves effortlessly with your body.
Wear it as a base layer on cold days or solo on mild runs — either way, you’ll feel light, dry, and ready to perform.
⚙️ Features
-
Moisture-wicking, quick-dry fabric — stay dry and comfortable
-
4-way stretch — unrestricted movement for training or running
-
Quarter-length zipper — customize airflow as intensity rises
-
Stand collar — extra protection against the wind
-
Athletic slim fit — built to layer or wear solo
👕 Material & Care
-
90% polyester / 10% spandex
-
Machine wash cold (30°C)
-
Air dry only
⊘ Do not bleach or tumble dry
📏 Sizing
Fits true to size with an athletic silhouette.
If you prefer a looser fit, order one size up.
📸 Model is 180 cm / 75 kg wearing size XL.
🧊 Perfect For
-
Outdoor runs & gym sessions
-
Cycling & training
-
Daily wear & travel
-
Layering in cold-weather workouts
Original: $49.95
-70%$49.95
$14.98More Images











RUNNR CoreFlex™ Quarter-Zip — Lightweight Training Pullover
Your go-to layer for every season.
The RUNNR CoreFlex Quarter-Zip combines lightweight breathability with a sleek athletic fit — keeping you dry, comfortable, and focused during every run, ride, or workout.
✅ Quick-dry, sweat-wicking fabric
✅ 4-way stretch for full mobility
✅ Quarter-zip design for adjustable ventilation
✅ Ideal for running, gym, or casual wear
💥 Now 70% OFF + free worldwide shipping!

Move Freely. Train in Comfort.
The RUNNR CoreFlex Quarter-Zip is engineered for performance — a perfect balance between warmth and breathability. Its technical fabric keeps moisture away, while the streamlined cut moves effortlessly with your body.
Wear it as a base layer on cold days or solo on mild runs — either way, you’ll feel light, dry, and ready to perform.
⚙️ Features
-
Moisture-wicking, quick-dry fabric — stay dry and comfortable
-
4-way stretch — unrestricted movement for training or running
-
Quarter-length zipper — customize airflow as intensity rises
-
Stand collar — extra protection against the wind
-
Athletic slim fit — built to layer or wear solo
👕 Material & Care
-
90% polyester / 10% spandex
-
Machine wash cold (30°C)
-
Air dry only
⊘ Do not bleach or tumble dry
📏 Sizing
Fits true to size with an athletic silhouette.
If you prefer a looser fit, order one size up.
📸 Model is 180 cm / 75 kg wearing size XL.
🧊 Perfect For
-
Outdoor runs & gym sessions
-
Cycling & training
-
Daily wear & travel
-
Layering in cold-weather workouts
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Your go-to layer for every season.
The RUNNR CoreFlex Quarter-Zip combines lightweight breathability with a sleek athletic fit — keeping you dry, comfortable, and focused during every run, ride, or workout.
✅ Quick-dry, sweat-wicking fabric
✅ 4-way stretch for full mobility
✅ Quarter-zip design for adjustable ventilation
✅ Ideal for running, gym, or casual wear
💥 Now 70% OFF + free worldwide shipping!

Move Freely. Train in Comfort.
The RUNNR CoreFlex Quarter-Zip is engineered for performance — a perfect balance between warmth and breathability. Its technical fabric keeps moisture away, while the streamlined cut moves effortlessly with your body.
Wear it as a base layer on cold days or solo on mild runs — either way, you’ll feel light, dry, and ready to perform.
⚙️ Features
-
Moisture-wicking, quick-dry fabric — stay dry and comfortable
-
4-way stretch — unrestricted movement for training or running
-
Quarter-length zipper — customize airflow as intensity rises
-
Stand collar — extra protection against the wind
-
Athletic slim fit — built to layer or wear solo
👕 Material & Care
-
90% polyester / 10% spandex
-
Machine wash cold (30°C)
-
Air dry only
⊘ Do not bleach or tumble dry
📏 Sizing
Fits true to size with an athletic silhouette.
If you prefer a looser fit, order one size up.
📸 Model is 180 cm / 75 kg wearing size XL.
🧊 Perfect For
-
Outdoor runs & gym sessions
-
Cycling & training
-
Daily wear & travel
-
Layering in cold-weather workouts






















