Mens Gridback Fleece Snap Pullover-Pullovers-Free Fly-Mustang-Mountain Sports
Free Fly

Men's Gridback Fleece Snap Pullover

High-pile gridded fleece with a wind-resistant shell and snap-placket ventilation.

$148
Color: Deep Navy
Also inWomen's
Size:
Size guide
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Top features
Gridback Fleece Interior
Bonded Stretch Shell
4-Way Stretch
Description

One of the most coveted styles around Free Fly HQ, the Gridback Fleece Snap Pullover is an innovative combination of classic fleece comfort and streamlined weather resistance. The interior is an indulgently soft high-pile fleece that traps and retains heat through gridded channels, finished with a bonded stretch-weave shell that keeps out rain and wind unlike any other fleece. Wear it as an outer layer on brisk hikes and early morning boat rides, or pair it with a canvas pant for the beer garden.

Perfect for
Wind and Light Rain
A weather-resistant face on a fleece.
On the Water
Built for early morning boat rides.
Midlayer
Slides under a shell when it really turns.
Features
  • Gridback Fleece Interior. A high-loft grid fleece back that traps warmth and still breathes.
  • Bonded Stretch Shell. The weave is bonded to the fleece, so wind stops at the face.
  • 4-Way Stretch. Nine percent spandex, so reaching does not fight the garment.
  • Five-Button Placket. Open it to vent, close it to lock in heat.
  • Stand-Up Collar. Covers the neck without a hood to stow.
Size & Fit
Slim
Regular
Relaxed

Relaxed through the body with room to layer. Size down for a closer fit.

Relaxed through the body with added stretch that moves with you. Take your usual size — it layers over a baselayer without extra room.

Open size guide
Materials
  • Shell: 91% polyester, 9% spandex. Bonded stretch weave with a high-loft gridback fleece interior, 254 GSM.
  • Care: Machine wash cold with like colours. Tumble dry low.
About the brand

Free Fly started with a love of the water and a mission to make natural, breathable clothing that keeps up. Their bamboo-based fabrics are buttery soft and built for comfort from sunrise paddle to sunset hang. At Mountain Sports, we love Free Fly because it’s made for life lived outside — easygoing, effortless, and always adventure-ready.

Shop all Free Fly

SKU MGBFPL-440 · Style MGBFPL
Size guide

Free Fly Size Chart - Men's Apparel

Free Fly Sizing Chart

All measurements are in inches and reflect body measurements. If you are in between sizes, size up for comfort.

Men's Size Guide (Men's Apparel - single chart for tops and bottoms):

Alpha Sizes Numeric Sizes Chest Waist Hip Sleeve
S 30–31 36–38 30–32 34–37 32–33
M 32–33 38–40 32–34 37–39 33–34
L 34–35 41–43 35–37 40–42 34–35
XL 36–38 44–46 38–40 43–45 35–36
XXL 40 47–49 41–43 46–48 36–37
3XL 50–52 44–46 49–51 36–37

Numeric Sizes are waist equivalents. How to measure: Chest - circumference at the widest part of the chest, about 1" down from armpit; Sleeve - with arm slightly bent, from center back neck to shoulder, down arm to wrist bone; True Waist - around the natural waist, narrowest part of the torso; Hip - around the fullest part of the hips. Inseam length is listed on each product page.
Performance

How it ranks across conditions.

Calibrated against comparable products we stock, so you can compare like for like.

Warmth

1
2
3
4
5

High-loft gridback fleece at 254 GSM

Weather Resistance

1
2
3
4
5

Bonded stretch weave sheds wind and light rain

Stretch

1
2
3
4
5

Four-way stretch woven shell

Breathability

1
2
3
4
5

Grid construction vents while it insulates

Best for

Is this right for you?

Cold mornings & winter layering

High-pile warmth that works as outerwear in shoulder season and a midlayer in winter.

Not for: Caught in steady rain? You'll want the Cloudshield Rain Jacket

Travel & everyday wear

Lightweight, packable comfort from the trailhead to town.

Not for: For hot, sunny days reach for the Bamboo Lightweight Hoodie

Full spec sheet

Technical Specs

Shell Fabric91% polyester, 9% spandex bonded stretch weave
InteriorHigh-loft gridback fleece
Fabric Weight254 GSM
ClosureFive-button placket
CollarStand-up
Questions, answered

Before you buy.

Pulled from chats, emails and store visits. The things people actually ask us before they buy. Don't see yours?

Ask a question
Will the Gridback fleece block wind and rain?

Yes to wind, mostly to drizzle. The bonded stretch-weave shell is wind-resistant and sheds light rain — unusual for a fleece. It isn't a waterproof shell, though, so for sustained rain pair it with a rain jacket like Free Fly's Cloudshield.

How do Free Fly layers fit?

Free Fly tops have a relaxed, athletic fit and most people take their usual size. If you're between sizes or plan to layer underneath, size up — and check the size guide for chest and length measurements.

Can I check this out in person first?

Absolutely — stop by Mountain Sports and we'll set it up so you can try before you buy. And everything ships with free 30-day returns if it's not the right fit.

Find the right one for you

How the Gridback Fleece Snap Pullover compares

Head-to-head against the closest alternatives we stock, so you can see where this one sits before you commit.

Feature
Free Fly
Men's Gridback Fleece Snap Pullover
You're viewing
Free Fly
Men's Thermowind Jacket
Wind ProtectionWind-resistant faceWindproof membrane
ConstructionBonded fleece with stretch shell3-layer bonded
ClosureFive-button placketFull zip
Best ForEveryday fleece warmthWind and wet
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