Womens Bamboo Flex Sunday Tee-Short Sleeve Shirts-Free Fly-Ocean Mist-Mountain Sports
Free Fly

Women's Bamboo Flex Sunday Tee

Luxe-weight bamboo softness with UPF 50+ for slow Sundays all week.

$29
Color: Birch
Size:
Size guide
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Top features
Buttery-soft bamboo blend
UPF 50+ sun protection
Luxe premium weight
Description

Easy like a Sunday morning, this luxe-weight tee combines the wildly soft feel of fabric made from bamboo with a hint of stretch from spandex for everyday comfort you’ll reach for time and time again. The boxy, slightly cropped fit pairs perfectly with our new Flex Sunday Short for weekend-like comfort you’ll want to wear all week long. 

Perfect for
Everyday
Errands to easy days.
Lounging
Couch to campfire.
Sun protection
High-UV days.
Travel
Pack-light trips.
Features
  • Buttery-soft bamboo blend. Viscose from bamboo gives this fabric its signature buttery, broken-in softness from the very first wear.
  • UPF 50+ sun protection. Fabric rated UPF 50+ blocks the vast majority of UV rays for all-day sun coverage.
  • Luxe premium weight. Substantial 270 GSM fabric drapes beautifully for a premium, luxe feel.
  • Stretch where you need it. A hint of spandex adds easy, everyday stretch to the wildly soft bamboo fabric.
Materials
  • 64% Viscose from Bamboo / 28% Polyester / 8% Spandex.
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 WFXST032-L
Size guide

Free Fly Size Chart - Women'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.

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

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

How to measure: Bust - circumference at the widest part of the chest, about 1" down from armpit; 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.

Softness

Soft
Very soft
Ultra-soft

Signature buttery bamboo feel

Breathability

Low
Moderate
High

Luxe 270 GSM — everyday breathable

Sun protection

UPF 25+
UPF 40+
UPF 50+

Rated UPF 50+

Best for

Is this right for you?

Slow weekends

Luxe 270 GSM bamboo softness with UPF 50+ for errands, patios, and porches

Not for: Too plush for sweaty workouts — it's comfort-first Try the Elevate Lightweight Tee

Everyday uniform

Boxy crop pairs with high-waisted everything, all week long

Not for: Want a tank for peak summer heat? See the Bamboo Current Tank

Full spec sheet

Technical Specs

Fabric64% Viscose from Bamboo / 28% Polyester / 8% Spandex
Fabric weight270 GSM
UPF ratingUPF 50+
FitBoxy, slightly cropped
NecklineCrew
DetailFlag logo label
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
How should I wash this?

Machine wash cold on a gentle cycle with like colors, then hang dry or tumble dry low. Skip bleach and fabric softener — they break down soft performance fibers. Always defer to the sewn-in care label.

How does Free Fly sizing run?

Free Fly women's tops generally run true to size with an easygoing cut. Check each style's fit notes — some are boxy and slightly cropped, others fitted — and size up if you're between sizes and prefer extra room.

What does viscose from bamboo feel like?

Incredibly soft — think your most broken-in tee, but smoother. Fabric made with viscose from bamboo drapes lightly, breathes well, and feels cool and silky against the skin.

What does the UPF rating mean?

UPF (Ultraviolet Protection Factor) measures how much UV radiation a fabric blocks — a UPF 50+ fabric lets only about 1/50th of UV rays through. Check this product's spec list for its exact rating.

Find the right one for you

How the Bamboo Flex Sunday Tee compares

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

Feature
Free Fly
Elevate Lightweight Tee
Free Fly
Bamboo Flex Sunday Tee
You're viewing
Free Fly
Beach Access Tee
Free Fly
Elevate Lightweight Fitted Tee
PriceFrom $27From $31.90From $17$58
Fabric81% poly / 11% lyocell / 8% spandex64% bamboo viscose / 28% poly / 8% spandex50% poly / 37% cotton / 13% rayon81% poly / 11% lyocell / 8% spandex
Fabric weight145 GSM270 GSM—145 GSM
UPF ratingUPF 40+UPF 50+—UPF 25+
FitBoxy, slightly croppedBoxy, slightly croppedBoxy, slightly croppedFitted, cropped
Odor controlHeiQ Fresh——HeiQ Fresh
Best forHot-weather workoutsEveryday luxe comfortBeach & casual daysPerformance training
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