SEAWOOL

Made from Upcycled Oyster Shells

High Performance.

Highly Sustainable.

Meet Seawool, a sustainable fabric made from upcycled oyster shells and recycled plastic bottles. Thanks to the natural properties of the shells and the durability of recycled polyester, this fabric delivers awesome performance. Bonus points: all those recycled plastic bottles never get the chance to end up in our oceans.

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Women's Seawool Flannel Shirt - Birch Plaid

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Seawool Flannel Shirt

$82.60

4.6

Rated 4.6 out of 5 stars

High Performance.

Highly Sustainable.

Shop Men Shop Women

THE NATURAL BENEFITS OF SEAWOOL

Wildly Soft

Temp-Regulating

Anti-Static

Moisture-Wicking

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The Seawool Flannel

Don’t let the timeless looks fool you—our Seawool Flannel packs a punch in the performance department

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Men's Seawool Flannel Shirt - Sagebrush Stripe

PROTECTING OUR WILD PLACES

The Seawool Process

Pairs Well With

Men's Gridback Fleece Vest - Dark Forest

Men's Folly Twill Chore Coat - Vintage Camo

Men's Bamboo Lightweight Fleece Hoodie - Anthracite

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Women's Ribbed Bamboo Tank - Smokey Olive

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Women's Pacifica Twill Pant - Canyon Clay

Women's Gridback Fleece Jacket - Dark Forest

B Corp Certified

SUSTAINABLE

LOW-IMPACT

For over a decade, we've been innovating with natural materials—bamboo, eucalyptus, and now oyster shells—to build our gear. As a family-founded company that lives for the outdoors, supporting our community and protecting our planet’s wild places are absolutely central to Free Fly’s purpose.

One Size Doesn't Fit All

All measurements are in inches and reflect body measurements. If you are in between sizes, size up for comfort. Got questions? Email us at info@freeflyapparel.com.

Men

Women

Toddler

Youth

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

Alpha Sizes	Numeric Sizes	Bust	Waist	Hip
XS	0–2	32–33	25–26	35–36
S	4–6	34–35	27–28	37–38
M	8–10	36–37	29–30	39–40
L	12–14	38 1/2–40	31 1/2–33	41 1/2–43
XL	16	41 1/2–43	34 1/2–36	44 1/2–46
XXL		44 1/2–46	37 1/2–39	47 1/2–49

US Size	Height (IN)	Weight (LB)
2T	33–37	27–31
4T	38–42	33–37
6T	45–49	44–48

US Size	Height (IN)	Weight (LB)
XS/6–7	45–48	45–50
S/8–9	49–52	51–65
M/10–12	53–57	66–80
L/13–14	68–62	81–95
XL/15–16	63–66	96–110

*Learn how to find your true waist below.

Please find inseam length on specific product detail page.

Select Your Size

How to Measure Yourself

Use the guide below with a fabric tape measure to find your measurements.

CHEST

Measure circumference from the widest part around chest, about 1” down from armpit.
SLEEVE

With arm slightly bent, measure from center back neck to shoulder, down arm to wrist bone.
TRUE WAIST

Measure around your natural waist, narrowest part of your torso.
HIP

Measure around the fullest part of your hips.

The Holiday Surf Capsule

Northcoast Fleece

Bamboo Shade Hoodie

SEAWOOL

SEAWOOL

High Performance.

Highly Sustainable.

High Performance.

Highly Sustainable.

The Seawool Flannel

PROTECTING OUR WILD PLACES

The Seawool Process

Pairs Well With

B Corp Certified

CHEST

SLEEVE

TRUE WAIST

HIP

BUST

TRUE WAIST

HIP

SEAWOOL

SEAWOOL

High Performance.

Highly Sustainable.

High Performance.

Highly Sustainable.

The Seawool Flannel

PROTECTING OUR WILD PLACES

The Seawool Process

Pairs Well With

B Corp Certified

One Size Doesn't Fit All

Men

Women

Toddler

Youth

How to Measure Yourself

CHEST

SLEEVE

TRUE WAIST

HIP

BUST

TRUE WAIST

HIP

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