

Jan & Jul Thermal Base Layer Top for Toddler Boys or Girls (Oatmeal, Size 4T)
Key item features
- 【VERSATILE】Your child will love the softness and comfort of this boys' base layer top for indoors and outdoors. The stretchy brushed fleece of our toddler base layer shirt is made from a durable polyester/spandex blend. Perfect for wearing on its own and layering for the colder weather.
- 【WARM & INSULATING】Jan & Jul's base layers for boys are a great cozy option from school to ski lessons. This long sleeve base layer top is sure to provide heavy-duty warmth for the fall, winter, and spring.
- 【BREATHABLE】No more clammy sweat thanks to lightweight and moisture-wicking athletic fabric. Suitable for outdoor activities and winter sports.
- 【ROOMY COMFORTABLE FIT】Not your average kids' thermal underwear! This base layer shirt for kids is also good for everyday wear. Designed with raglan sleeves and flatlock seams for all-day comfort. Our thermal shirt and matching pants, beanie and neck warmer make the cutest cozy outfit! Base layer shirt and pants are sold separately so you can get the right fit for your child. Available in sizes 2T, 3T, 4T, 5T, 6Y, 8Y, 10Y, and 12Y with two colour options for boys and girls.
- 【MACHINE WASHABLE】Machine wash cold, tumble dry low.
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About this item
Product details
Whether staying in or heading out to the great outdoors, stay warm with Jan & Jul's Thermal Base Layer Top. On days when the weather is milder, wear it on its own. With rain or snow in the forecast, pair it with some waterproof gear. Our ultra-warm and soft brushed fleece provides great breathable insulation for all-day comfort, no matter the activity!
- VERSATILE WEAR: This base layer long sleeve shirt can be worn on its own for a cozy everyday look or worn under layers for colder weather. Perfect for the fall, winter and spring.
- WARM: From daycare to school field trips, our soft brushed fleece is guaranteed to keep your little one warm and insulated.
- BREATHABLE: Our thermal underwear for boys and girls is made from a durable polyester and spandex blend. Moisture-wicking and lightweight, even the most active kids can play all day and the shirt won’t feel clingy or sweaty.
- COMFORTABLE FIT: Our thermal base layer shirt is stretchy and features raglan sleeves and flatlock seams for all-day comfort.
- EASY CARE: We know that with toddlers, accidents happen. That's why we designed our kids' base layers to be easy to clean. Simply machine wash cold and tumble dry low.
Combined with our matching pants, beanie and neck warmer, your child will be rocking the cutest thermal outfit! Base layer shirt and pants sold separately so you can get the right sizes for your child. Available in sizes 2T, 3T, 4T, 5T, 6Y, 8Y, 10Y and 12Y with two colour options for boys and girls.
See the whole toddler base layer collection at the Jan & Jul Storefront. You’ll also find our line of waterproof gear such as rain jackets, snow pants, one-piece suits, mittens, and boots.
- 【VERSATILE】Your child will love the softness and comfort of this boys' base layer top for indoors and outdoors. The stretchy brushed fleece of our toddler base layer shirt is made from a durable polyester/spandex blend. Perfect for wearing on its own and layering for the colder weather.
- 【WARM & INSULATING】Jan & Jul's base layers for boys are a great cozy option from school to ski lessons. This long sleeve base layer top is sure to provide heavy-duty warmth for the fall, winter, and spring.
- 【BREATHABLE】No more clammy sweat thanks to lightweight and moisture-wicking athletic fabric. Suitable for outdoor activities and winter sports.
- 【ROOMY COMFORTABLE FIT】Not your average kids' thermal underwear! This base layer shirt for kids is also good for everyday wear. Designed with raglan sleeves and flatlock seams for all-day comfort. Our thermal shirt and matching pants, beanie and neck warmer make the cutest cozy outfit! Base layer shirt and pants are sold separately so you can get the right fit for your child. Available in sizes 2T, 3T, 4T, 5T, 6Y, 8Y, 10Y, and 12Y with two colour options for boys and girls.
- 【MACHINE WASHABLE】Machine wash cold, tumble dry low.




















































































