Lightweight warmth for training, travel, and everyday layeringThermaFlex™ is a soft, stretch-focused base layer designed to add comfortable coverage beneath activewear, outerwear, or everyday clothing during cooler conditions.Performance-ready features Long-sleeve layering: Designed to wear comfortably beneath jackets, hoodies, or training layers. Stretch fit: Flexible construction supports everyday movement. Multiple color options: Choose from available neutral and muted tones. Top or set options: Select the configuration that fits your routine. Travel friendly: Easy to pack for cooler-weather trips and outdoor activities. Ideal for Cold-weather layering Walking and light outdoor activity Travel Warm-up routines Everyday comfort Review the available color and size options before ordering. Follow the care instructions supplied with the garment.