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Penn State Nittany Lions Onesie

Penn State Nittany Lions Onesie

Regular price $43.99 USD
Regular price Sale price $43.99 USD
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Soft and smooth Hypoallergenic Bamboo

Easy Change Two Way Dual Zippers

Convertible Mittens and Footies

Size Size Chart



Gear up your little Nittany Lion in our officially licensed Penn State Nittany Lions Bamboo Onesie, perfect for babies to toddlers 3-24 months. Made from ultra-soft, hypoallergenic bamboo fabric, this onesie ensures your baby stays comfy and irritation-free. Featuring the iconic Penn State Nittany Lions logo and colors, it’s breathable, moisture-wicking, and thermo-regulating for year-round comfort. The double zipper design allows for easy diaper changes. Certified by OEKO-TEX, it’s free from harmful chemicals and provides UV protection. Enjoy free shipping, returns, and exchanges.


Get ready for play or sleep time with our signature bamboo onesie!

  • OEKO-TEX® Certified Safe 
  • Complies with all CPSC safety regulations
  • Made from premium and soft bamboo viscose
  • No snaps, buttons or interior tags 
  • True to fit
  • Lasts through multiple growth cycles
  • Breathable comfort all seasons
  • Durable and long-lasting
  • Fold-over mittens
  • Fold-over foot cuffs 
  • Double zipper equals easy diaper changes


95% Viscose from Bamboo fibers
5% Spandex
Our fabric is hypoallergenic, incredibly soft and gentle on a child's delicate skin. It is not treated with flame or fire retardant chemicals and meets OEKO-TEX certified safe standards. 


    For the best fit, we suggest starting with your child's height when selecting a size. Our bamboo clothing grows with your child, and can last multiple growth cycles. Need help choosing a size? Please Contact Us.


    Our signature bamboo clothing is designed for longevity and can withstand regular washing with simple, proper care:

    • Wash inside out and separate other colors
    • Pre-treat stains
    • Wash cold with mild detergent
    • Use Dark Defense detergent for darker colors
    • Line dry or tumble dry on low


    This item ships FREE in 1 business day with an estimated delivery in 3 to 5 business days. Free Standard Shipping is valid for orders shipped within the 48 contiguous states of the United States.


    Shipping charges will apply to orders being shipped to Alaska, Hawaii, other offshore insular areas, and international.


    We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

    To be eligible for a return, your item must be in the same condition that your received it, unworn or unused, with tags, and in its original packaging. 

    To start a return, you can Contact Us or Start a Return here.

    View full details



    Enjoy cozy comfort and show off your Penn State pride with Tailgate Tikes' soft bamboo onesies and pajamas.


    Every licensed sale we make generates a royalty payment to the Pennsylvania State University to support their student athletes.



    Are your products officially licensed?

    Yes! Every licensed sale we make generates a royalty payment to the respective university to support their student athletes. Tailgate Tikes Collegiate Collection items proudly bear the Officially Licensed Collegiate Products hologram label, signifying their official licensing. We’re authorized by the universities and teams we represent to utilize their logos, namesakes, and trademarks.

    What makes our Penn State Nittany Lions Onesies great?

    Our Penn State Nittany Lions double zipper bamboo onesies, perfect for infants to toddlers, are crafted from soft, hypoallergenic bamboo, ensuring ultimate comfort for your little one. Available in sizes from 2 to 24 months, these onesies are designed to fit your child perfectly as they grow. The thermo-regulating, moisture-wicking, and breathable fabric keeps your child cozy in any weather, while the durable, stretchable material grows with your baby, providing long-lasting value. The convenient double zipper design makes diaper changes and dressing quick and easy.

    Featuring stylish and fun designs, our onesies showcase team spirit while being OEKO-TEX certified, ensuring they are free from harmful chemicals. Choose our Penn State Nittany Lions baby apparel, including these premium bamboo onesies, for safe, comfortable, and spirited sleepwear. Shop our collection of Penn State baby clothes, including sports onesies, sleeper onesies, and pride onesies. Our pride baby onesie and collegiate onesie options are perfect for showing school spirit. Explore our lions onesie, lion onesies, lion onesie baby, lion baby onesie, and baby lion onesie selections to find the perfect fit for your little Nittany Lion. Enjoy free shipping and excellent customer service!

    What makes bamboo clothing perfect for children?

    Bamboo clothing is perfect for children due to its softness and smoothness, making it gentle on sensitive skin and reducing the risk of irritation and allergies. It is naturally hypoallergenic, highly breathable with excellent moisture-wicking properties, and helps regulate body temperature. Bamboo also contains natural antibacterial and antimicrobial agents, reducing bacteria and odors, and provides natural UV protection. Its durability ensures it withstands frequent washing and wear, making it a practical choice for active children.

    Should I choose a pajama set or a zippered onesie?

    Choosing between a pajama set and a zippered onesie for your baby or toddler depends on ease of use, comfort, mobility, temperature regulation, and growth flexibility. Zippered onesies offer quick diaper changes and keep babies snug and covered throughout the night, making them ideal for cooler climates. Pajama sets provide greater freedom of movement for active toddlers and can be better for warmer environments with mix-and-match layering options. While onesies ensure complete coverage, pajama sets offer sizing flexibility. Both options have their benefits, so consider your child's needs and preferences.

    How should I care for the bamboo clothing to maintain its quality?

    To maintain the quality of bamboo clothing, wash it in cold or warm water on a gentle cycle using mild, eco-friendly detergents without bleach or fabric softeners. Air dry the clothing whenever possible, or use a low heat setting if using a dryer. Avoid excessive heat when ironing, and if needed, use a low setting with a cloth between the iron and the fabric. Handle the clothing gently to prevent stretching, and pre-treat stains with mild detergent or water and white vinegar. Following these guidelines will keep your bamboo clothing soft, durable, and comfortable.

    What if I ordered the wrong size?

    If you ordered the wrong size at Tailgate Tikes, we offer free returns and exchanges to ensure you get the perfect fit. Please review our size chart before ordering, and feel free to contact us if you need assistance in choosing the right size. We're here to help make sure your little one is comfortable and stylish in our clothing.