The Timeless Apparel for Life Outside

Products

Any two tees ship free

Fewer than 1% ask for a refund

Products

Birdline tees built for early starts, long looks and the ride home.
761 products
Slow Birder T-Shirt in Midnight, front viewSlow Birder T-Shirt, alternate view
Slow Birder T-Shirt

From $39.95

Smore the Merrier T-Shirt in Crimson, front viewSmore the Merrier T-Shirt, alternate view
Smore the Merrier T-Shirt

From $39.95

Snack Patrol Boar T-Shirt in True Navy, front viewSnack Patrol Boar T-Shirt, alternate view
Snack Patrol Boar T-Shirt

From $39.95

Social Distancing Expert T-Shirt in Grey, front viewSocial Distancing Expert T-Shirt, alternate view
Social Distancing Expert T-Shirt

From $39.95

Not sure where to start?

Find your outdoor tee

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Son of a Birch T-Shirt in Crimson, front viewSon of a Birch T-Shirt, alternate view
Son of a Birch T-Shirt

From $39.95

Songbird Addict T-shirt in Seafoam, front viewSongbird Addict T-shirt, alternate view
Songbird Addict T-shirt

From $39.95

Songbird Study T-Shirt in Ivory, front viewSongbird Study T-Shirt, alternate view
Songbird Study T-Shirt

From $39.95

Sparrow Spotter T-shirt in Washed Denim, front viewSparrow Spotter T-shirt, alternate view
Sparrow Spotter T-shirt

From $39.95

Spoonbill at Dawn T-shirt in Espresso, front viewSpoonbill at Dawn T-shirt, alternate view
Spoonbill at Dawn T-shirt

From $39.95

Spotted a Bird Missed the Exit T-Shirt in Bay, front viewSpotted a Bird Missed the Exit T-Shirt, alternate view
Spotted a Bird Missed the Exit T-Shirt

From $39.95

Squatch Watch T-Shirt in Crimson, front viewSquatch Watch T-Shirt, alternate view
Squatch Watch T-Shirt

From $39.95

Stay Until the Stars T-Shirt in True Navy, front viewStay Until the Stars T-Shirt, alternate view
Stay Until the Stars T-Shirt

From $39.95

Stay Wild Eagle T-shirt in Black, front viewStay Wild Eagle T-shirt, alternate view
Stay Wild Eagle T-shirt

From $39.95

Stay Wild Heron T-shirt in Moss, front viewStay Wild Heron T-shirt, alternate view
Stay Wild Heron T-shirt

From $39.95

Stealth Mode On T-Shirt in Espresso, front viewStealth Mode On T-Shirt, alternate view
Stealth Mode On T-Shirt

From $39.95

Still Out There T-Shirt in Washed Denim, front viewStill Out There T-Shirt, alternate view
Still Out There T-Shirt

From $39.95

Strike Out T-Shirt in Ivory, front viewStrike Out T-Shirt, alternate view
Strike Out T-Shirt

From $39.95

Summer Bird Camp T-Shirt in Midnight, front viewSummer Bird Camp T-Shirt, alternate view
Summer Bird Camp T-Shirt

From $39.95

Sunrise Is the Entry Fee T-Shirt in Blue Spruce, front viewSunrise Is the Entry Fee T-Shirt, alternate view
Sunrise Is the Entry Fee T-Shirt

From $39.95

Supply Check Badger T-Shirt in Sandstone, front viewSupply Check Badger T-Shirt, alternate view
Supply Check Badger T-Shirt

From $39.95

Supply Check Bear T-Shirt in Ice Blue, front viewSupply Check Bear T-Shirt, alternate view
Supply Check Bear T-Shirt

From $39.95

Swainson's Hawk T-Shirt in Khaki, front viewSwainson's Hawk T-Shirt, alternate view
Swainson's Hawk T-Shirt

From $39.95

Take A Hike Long Sleeve Shirt in Ash, front viewTake A Hike Long Sleeve Shirt, alternate view
Take A Hike Long Sleeve Shirt

From $32.95

Take a Hike T-Shirt in Blue Spruce, front viewTake a Hike T-Shirt, alternate view
Take a Hike T-Shirt

From $39.95

Take A Hike T-Shirt in Coral Silk, front viewTake A Hike T-Shirt, alternate view
Take A Hike T-Shirt

From $29.95

Take the Long Way Roadrunner T-Shirt in True Navy, front viewTake the Long Way Roadrunner T-Shirt, alternate view
Take the Long Way Roadrunner T-Shirt

From $39.95

Talk Hike to Me T-Shirt in Pepper, front viewTalk Hike to Me T-Shirt, alternate view
Talk Hike to Me T-Shirt

From $39.95

Talon It Like It Is. T-Shirt in Crimson, front viewTalon It Like It Is. T-Shirt, alternate view
Talon It Like It Is. T-Shirt

From $39.95

Talon Me About It T-Shirt in Midnight, front viewTalon Me About It T-Shirt, alternate view
Talon Me About It T-Shirt

From $39.95

Tanager Tracker T-shirt in Seafoam, front viewTanager Tracker T-shirt, alternate view
Tanager Tracker T-shirt

From $39.95

Tentative Plans T-Shirt in Black, front viewTentative Plans T-Shirt, alternate view
Tentative Plans T-Shirt

From $39.95

Terracotta Songbird T-Shirt in Moss, front viewTerracotta Songbird T-Shirt, alternate view
Terracotta Songbird T-Shirt

From $39.95

That's Enough Daylight Wild Boar T-Shirt in Blue Spruce, front viewThat's Enough Daylight Wild Boar T-Shirt, alternate view
That's Enough Daylight Wild Boar T-Shirt

From $39.95

The Canoe Has Priority T-Shirt in Blue Jean, front viewThe Canoe Has Priority T-Shirt, alternate view
The Canoe Has Priority T-Shirt

From $39.95

The Car Is That Way T-Shirt in Pepper, front viewThe Car Is That Way T-Shirt, alternate view
The Car Is That Way T-Shirt

From $39.95

The Details Are the Whole Point T-Shirt in Blue Spruce, front viewThe Details Are the Whole Point T-Shirt, alternate view
The Details Are the Whole Point T-Shirt

From $39.95

The Dog Chose the Route T-Shirt in Pepper, front viewThe Dog Chose the Route T-Shirt, alternate view
The Dog Chose the Route T-Shirt

From $39.95

The Dog Picked the Trail T-Shirt in Crimson, front viewThe Dog Picked the Trail T-Shirt, alternate view
The Dog Picked the Trail T-Shirt

From $39.95

The Fish Can Wait T-Shirt in Grey, front viewThe Fish Can Wait T-Shirt, alternate view
The Fish Can Wait T-Shirt

From $39.95

About Birdline tees at Birdline Outfitters

What a Birdline tee is made of

Most Birdline tees are printed on heavyweight garment-dyed cotton in a relaxed unisex fit. The fabric, fit and care for each design are listed on its product page.

Choosing a tee for the field

Birds notice movement and contrast long before they notice you. Muted earth tones — olive, sand, stone, bark — blend into cover; skip white, which reads as a flash of movement from across a field. Matte garment-dyed cotton doesn't catch the light the way technical fabrics can. Start the morning in a heavyweight tee and carry a light mid-layer for when the sun clears the treeline.

Sizing and fit

Birdline tees are a relaxed unisex fit with room to move. Every product page has a Find Your Fit guide with chest and length measurements for each size, so you can check before you order.

Our promise: no ruffled feathers

30-day guarantee. No ruffled feathers — every Birdline tee is backed by it.

Any two tees ship free. Free U.S. shipping on any two tees.

Field Set pricing. Put three or more tees in your cart and each drops to its Field Set price: Signature from $34, Everyday from $24.

Fewer than 1% refunds. Across all Birdline sales, fewer than 1% of customers have asked for one — the tees arrive as pictured and fit as described.

Order the right size the first time. Every product page has a Find Your Fit guide with chest and length measurements for each size, so check it before you order.

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Size Guide

Designed for comfort in the field and everywhere in between.

Find Your Fit

Height
Weight
Body Build
Preferred Fit

This is a starting-size estimate. Verify chest width in the Size Chart before choosing.

Between sizes? For a relaxed look, size up.
For a more fitted look, size down.

Size Chart

Size Chest width
(in)
Body length
(in)
Sleeve length
(in)
S18.2526.616.25
M20.252817.75
L2229.419
XL2430.7520.5
2XL2631.621.75
3XL27.7532.523.25
4XL29.7533.524.625

Garment measurements, taken with the tee lying flat. Compare them with a tee that fits you well.

Our Fit

Tee diagram showing chest and length measurement points
  • Relaxed, unisex fit
    Designed to move with you on every adventure.
  • Garment-dyed cotton
    Pre-shrunk for a soft feel that lasts.
  • Made for birders, worn everywhere
    Comfortable in the field, at camp and beyond.
“The joy of birding isn’t just in the birds we see, but in the life we notice because of them.”