Here Are Some Undergarments to Keep You Warm While Traveling During Winter

These thermals were thin but would be great for short periods of outside play. We were looking for thermal designed for all day cold weather mountain wear. This is run around town under your jeans thermals or go play with your friends for a few come inside wear. - teamweber

 Price: 19.97

10. MEETYOO unisex-child Boys and Girls Thermal Underwear Set

• Slim & light but keep warm in winter: The boy's thermal underwear set is made of skin-friendly fabric, 92% Polyester/8% Spandex. The fleece-lined baselayer will keep your kids warm and comfortable. It's really light, soft, and breathable, especially good for children in cold conditions.
• Excellent flexibility for movements: The girl's thermal long johns are designed with 4-way stretch fabric for maximum freedom of activities. And smooth stitches will reduce friction to protect children's delicate skin. Compression baselayers ensure that bunch around the body and reduce heat loss.
• Quickly absorbing sweat in exercise: The unisex thermal top and bottom will absorb sweat and dry quickly, keep away from clammy feelings, and control unpleasant smells in exercise. The kid's long baselayer will provide enough comfort and warmth when kids move in cold weather.

Customer review:

They look exactly like the photo. I ordered 3 sizes, Small, Medium and Large. The SMALL was too big for my 5yr old. (I should've ordered x-small) The MEDIUM fit my 8yr too but loose. The LARGE fit my 10 and 11yrs olds just right. Overall they are warm, stylish and I would definitely recommend them! - Mayraval

 Price: 22.99

11. Rocky Thermal Underwear for Boys (Thermal Long Johns Set) Shirt & Pants, Base Layer w/Leggings/Bottoms Ski/Extreme Cold

• No more old-school scratchy insulated underwear: Traditional cotton long underwear is simply scratchy and uncomfortable to wear for long periods of time, Rocky thermals are made from a soft, comfy polyester blend so you can enjoy all-day comfort, and your winter adventures never have to end.
• Fleece-lined comfort (without the bulk): Don’t let the lightweight fabric fool you, thanks to the fleece-lined design, this thermal underwear set gives you high-quality warmth that fans say keep them warmer than traditional puffy thermals or wool base layers that leave you feeling strangled or trapped.
• No more awkward adjusting thanks to elastic seams: Check out the pictures and see how this boy’s thermal underwear set is crafted using elastic seems that keeps tops and bottoms from falling down or bunching up (even on long walks to school), and if your family enjoys skiing, snowboarding, or ice skating then Rocky makes a great base layer -- but without the sagging and ‘awkward adjustments’.
• Machine washable for easy cleanup: While cheap thermal underwear unravels in the washing machine after only a few cycles, Rocky uses high-quality stitching for thermal leggings and long sleeve shirts that stand up to the washer -- even with super-active days and many muddy adventures.

Customer review:

My son is small for 7 years old. I got small size, shirt fits perfect, but pants is big. Still not a problem as it's used under pants and I know he will be protected. Love it! - Gilvania Barnes

 Price: 28.99

12. LAPASA Girls 100% Cotton Thermal Underwear Set, Ultra Soft Long Johns Base Layer for Kids Top & Bottom (Thermoflux G09)

• 100% cotton: These long johns are made of hypoallergenic 100% cotton fabric which is excellent for children with sensitive skin or who have allergies to synthetic fabrics.
• Warm like fleece: The 220g/m² interlock soft cotton will feel plush against the skin and the thermal underwear provides adequate warmth while remaining breathable.
• Base layer: The elastic waistband and rib knit cuffs make this thermal set excellent for layering.
• Wear it anywhere: Whether your child is camping, hiking, snowboarding, or just taking it easy, these comfy thermal base layers will keep them at the optimal temperature.
• Cool colors for warm clothes: These thermal underwear sets come in eye-catching colors your children will love.

Customer review:

This is just as we envisioned it. Our little one love it so much she asks to wear it outdoors as an outfit. It’s soft and comfortable. The size was perfect. - pcpf

 Price: 27.99