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Yellow-bellied Marmot - Marmota flaviventris - Lightweight 100% Cotton Unisex Crewneck

Size chart
Unisex Lightweight 100% Cotton Crewneck Size Chart
Size Chest (in) Length (in) Dress Size Bust Size

S

18

28

4/6

32-34

M

20

29

8/10

36-38

L

22

30

12/14

38-40

XL

24

31

16/18

42-44

2XL

26

32

20/22

46-48

3XL

28

33

24/26

48-50

** Please allow for +/- 1 inch variance in size
Unisex Lightweight 100% Cotton Crewneck size chart showing chest, length, and sleeve measurements - BeCause Tees
Size: Small
Color: Autumn
Autumn
Dusty Blue
Leaf Green
Mauve
Military Green
Mustard
Ocean Blue
Spring Green
Steel Blue
Storm Grey
3 trees planted & a portion donated with every order
Over 1 million trees planted and $370,000 donated to Eco non-profits!

This lightweight shirt is made from soft, high-quality cotton that feels great against the skin. It's perfect for everyday wear, whether you're running errands or just hanging out at home. Plus, it's made in a WRAP certified facility that is 100% sweatshop free. So you can feel good about wearing it knowing that it was made ethically and responsibly.

  • Soft fabric
  • 4.2oz 100% combed ringspun cotton
  • Lightweight
  • Unisex Sizing

Shop with Purpose

Every order plants trees & helps fund eco non-profits

Shipping on Us

Spend $100+ and we’ll take care of the shipping!

Supports a Small Business

Hand-drawn, printed, & shipped from California

 8,000+ 5-Star Reviews

Over 100,000 happy customers & first-class customer service

Customer Reviews

Based on 506 reviews
89%
(449)
8%
(38)
2%
(9)
0%
(2)
2%
(8)
M
Martha Pelletier

I love it even more

M
Martha Pelletier

I love it.

D
Debra Anderson
Fit: Runs Small
Normal Size: XL
Ordered Size: 2XL
Gender: Male
Hissing Opossum a huge hit!

The hubs LOVES the tee & the sticker! Got the 2XL in Autumn - perfect shade of "orange" - lovely! Perfect thickness for layering or stand-alone in hot weather. The size chart really helped, as I would not have thought to order a 2XL for him (6' / 190#). Will be ordering again for others! Thanks!

L
Luci M.
Fit: True to Size
Normal Size: Small
Ordered Size: S
Gender: Female
Beautiful graphic art

Beautiful, soft fabric, well-made t-shirt!
Thank you so much!

D
Deborah Ballem
Fit: True to Size
Normal Size: Small
Ordered Size: S
Gender: Female
Excellent quality and unique designs

I have purchased many products from Because for myself and for others. The quality is incredible! Thick yet soft cotton, incredible art, and for a good cause. The only thing I ask is to ship in a recyclable envelope - no plastic please. Thank you for what you do!

FAQs

What are the differences in shirt styles?

We have a variety of shirt styles depending on your fit preference. Compare them at the links below: 

Shirt Comparison Chart

Sweatshirt Comparison Chart

Where are your items shipped from?

Everything is shipped from Cotati, Northern California. Here's ourShipping Policy.

Where are the trees planted?

We plant 3 trees per order by donating to Veritree, and a portion of every order is donated to our charities:The Ocean Cleanup,National Forest Foundation, andPollinator Partnership.

You can find some more info about it here:https://becausetees.com/pages/mission

Where are your items manufactured?

While everything is drawn, printed, and shipped by us in Northern California, the article manufacturer's location varies depending on style and batch. Some of the factory locations include but aren't limited to, India, Mexico, Nicaragua, China, and Haiti.

 We only work with WRAP-certified companies to ensure ethical practices - you can find out more about this here:https://wrapcompliance.org/en/about/what-we-do/

We use US suppliers as much as possible, e.g., our Heavyweight100% Cotton Long Sleeve Tees are made with sustainably grown USA cotton and sewn with USA cotton thread, so you can feel good about supporting American farmers.

Do your shirts fit true-to-size?

This is a difficult question to answer because everyone has a different body type and a different preference to what is their "ideal fit". We recommend you find your favorite fitting shirt in your closet and measure from armpit to armpit. Then, take a look at our size chart listed on each individual style and compare the measurements. 

Can I return or exchange an item if it doesn't fit?

Yes! At Because Tees, we want you to be completely satisfied with your purchase. If, for any reason, you need to exchange or return an item, head to our Returns Portal to get started.

Customers can exchange or return their purchase within 30 days of the original purchase date. The item must be unused and in the same condition that you received it. We cannot accept returns or exchanges on worn or washed items. If you would like to exchange an item, please use our automated exchange system on our website. Once we receive the item(s), we will send your replacement. You will be responsible for shipping the original item(s) back to us.

For returns, you can use our automated return system on our website. Once we receive the return, please allow 1-3 days for your refund to be processed. Please note that we don't send return shipping labels or refund shipping charges.

Also, please be aware that we are a small business, so while we are happy to exchange, we cannot cover shipping fees for returned items. We will, however, cover the cost of sending out the new item(s) to you for US shipments only. Canadian and International shipments will be charged a shipping fee for the exchange. An order can only be exchanged once. Free Gifts cannot be exchanged or returned.

View our full Returns Policy. Please do not hesitate to contact us if you have any questions or concerns; our customer service team is always happy to help.

How should I care for my BeCause Tees shirt to ensure longevity?

To keep your BeCause Tees item looking its best for as long as possible, we recommend the following care instructions:

 

Machine wash cold, inside out with similar fabrics to protect the fabric and design.

Line dry or tumble dry on low to prevent shrinkage and preserve the fabric’s integrity.

 

Following these simple steps will help your item maintain its color, shape, and softness, allowing you to wear your cause proudly for years to come.

How quickly will I receive my order?

We strive to process and ship orders within 1-2 business days to get your items to you as quickly as possible.


 

During peak times, such as holidays or special promotions, production may take a bit longer — around 2-5 business days.


 

Shipping Time: Once your order is shipped, delivery typically takes 3-7 business days within the U.S., depending on your location and selected shipping option.


 

You’ll receive a tracking link as soon as your order is on its way.

Do you have an in-person store?

We hope to someday open a Bricks-and-Mortar shop, but for now, we just run out of our office/warehouse!

 

 


 

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