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    Shop our Sustainable Merino

    Premium Italian wool in a lightweight weave.

    Organic Baby T-Shirts and Tops

    With your little one on the move, you can never have too many baby t-shirts. And like every baby basic, we believe that all of their tees should be made from organic cotton that breathes, lasts and comes in a variety of colors.

    Lightweight Organic Cotton Baby T-Shirts

    We only use Peruvian Pima cotton because it's the softest cotton in the world. Your baby and toddler will sleep through the night or play throughout the day in complete comfort. Our cotton is so soft that you’ll be wishing our tees came in your size.

    The Benefits of Choosing Organic

    The dyes we use in all of our baby t-shirts meet Oeko-Tex Standard 100 requirements. This ensures that they’re eco-friendly and free of harmful chemicals that are common in cotton products.

    Today, many of the most harmful pesticides and insecticides are used in cotton production, according to the World Health Organization. Not only do these pollute the water and the communities around farmland, but they can cause skin irritation and unknown side effects.

    Durable Yet Soft Cotton

    Another advantage of using high-quality cotton is durability. Whether you're 1 or 41, your favorite tees are going to go through a lot of wear and tear. The best baby t-shirts are built to last for as long as they fit—and are designed to grow with your little one.

    This also means that our products are machine washable. Stop worrying about spills and just throw these tees in the wash.

    A Fitted Silhouette in a Variety of Colors

    The best designs are simple. That is why our baby t-shirts feature our signature fitted silhouette in a variety of elegant colors. Our tees are perfect to be worn by themselves or as a layer on chillier days.

    Available in short and long sleeve styles, our crew new tee offers the breathability and comfort people of all ages need.

    Essential Organic Baby T-Shirts

    Organic cotton isn’t for special occasions. Cute and comfortable tees are something your little one will wear day and night, so why not choose the highest quality and softest ingredients on the market? The search for the perfect baby t-shirt ends with 12|12.

    Sustainable Merino Crew Neck Sweater $ 64.00
    Sustainable Merino Crew Neck Sweater $ 64.00
    Sustainable Merino Crew Neck Sweater $ 64.00

    Organic Crew Neck T-shirt - Long Sleeve $ 24.00
    Organic Crew Neck T-shirt - Long Sleeve $ 24.00
    Organic Crew Neck T-shirt - Long Sleeve $ 24.00

    Organic Crew Neck T-shirt - Long Sleeve $ 24.00
    Organic Crew Neck T-shirt - Long Sleeve $ 24.00
    Organic Crew Neck T-shirt - Long Sleeve $ 24.00

    Organic Crew Neck T-shirt - Short Sleeve $ 22.00
    Organic Crew Neck T-shirt - Short Sleeve $ 22.00
    Organic Crew Neck T-shirt - Short Sleeve $ 22.00

    Organic Crew Neck T-shirt - Short Sleeve $ 22.00
    Organic Crew Neck T-shirt - Short Sleeve $ 22.00
    Organic Crew Neck T-shirt - Short Sleeve $ 22.00

    Organic Crew Neck T-shirt - Short Sleeve $ 22.00
    Organic Cami Onesie $ 22.00
    Organic Tank Onesie $ 22.00

    Organic Baby Onesie - Short Sleeve $ 22.00
    Organic Baby Onesie - Long Sleeve $ 24.00
    Organic Kimono Onesie $ 26.00

    Organic T-shirt Dress - Short Sleeve from $ 42.00
    Organic T-shirt Dress - Short Sleeve from $ 42.00
    Surfside Jumper $ 44.00

    Surfside Jumper $ 44.00
     
    Size Chart
    Size Height (inches) Weight (lb)
    Newborn Up to 18 5 - 8
    0-3 Months 18 - 23 8 - 12
    3-6 Months 23 - 26 12 - 16.5
    6-12 Months 26 - 29 16.5 - 23
    12-18 Months 29 - 31 23 - 27
    18-24 Months 31 - 33 27 - 30
    2T 33 - 35 30 - 33
    3T 35 - 38 33 - 36
    4T 38 - 41 36 - 39
    5 41 - 44 40 - 44
    6 44 - 47 44 - 49