Collection: Clothing - Kids - Functional underwear - Tops

Children's Performance Undershirts: For Active Days

Choose kids' performance undershirts based on your plans and the demands of the day. A kids' undershirt shouldn't need constant readjusting while playing. Check the length and shoulder area with arms raised. The neckline should be comfortable to put on and take off. Compare the fabric thickness with the clothing worn over it, and plan for care and drying for regular school days or outings.

Kids’ Base Layer Tops: Selection Criteria

• Shoulders: Test arm movements. Take your existing gear into account when comparing options.
• Length: Check the hem. Test how it fits before using it for the first time, if possible.
• Neck: Make sure it’s easy to put on and take off. Compare the options based on your specific planned use.
• Thickness: Plan appropriate layering. Pay attention to the specifications for each model you’re considering.

Testing Children’s Base Layers as a Set

Don’t just test base layers individually—try them on with the layers worn over them. Have your child squat, walk, and raise their arms. This will reveal whether seams, hems, or extra folds become uncomfortable. Room for growth shouldn’t compromise the current fit. Compare materials based on how they feel to your child and the specific care instructions. For multi-day trips, a well-organized set with compatible washing and drying options is helpful. Check the size again if the clothing hasn’t been used for a while.

Explore children’s functional undershirts and review the details of each model. Be sure to include functional underwear in your planning as well. If you’re unsure about your selection, ask for advice at a Transa store.