Under Armour Heat Gear Armour Long Sleeve Baselayer in black for kids, unisex fit, XL size.

Elevate your outdoor adventures with the Montane Dart Lite Long Sleeve Base Layer Top in Acer Red. This lightweight, breathable top is designed for optimal comfort and moisture-wicking performance, making it perfect for layering on chilly days.

Long sleeve merino wool crew top for men, made from high-quality materials for warmth and comfort in black color, available in large size.

Icebreaker Men's 200 Oasis Long Sleeve Crew Top in Gritstone Heather II color, size Large. Made of 100% merino wool for breathability and warmth. Perfect for outdoor activities or layering under jackets.

Icebreaker Men's 200 Oasis Long Sleeve Crew Baselayer in Gritstone Heather color and Small size. Made of lightweight merino wool for excellent moisture-wicking and breathability, perfect for layering.

Under Armour (0887907934405 / 1248196)

Portwest Thermal Long Sleeve T Shirt is a warm, comfortable and breathable thermal shirt with long sleeves available in grey or navy color. Made from high-quality materials, it provides excellent protection against cold weather while keeping you dry.

Portwest Thermal Long Sleeve T-Shirt in black and navy colors, available in sizes XL and 4XL.

This thermal long sleeve t-shirt is designed to keep you warm and comfortable while working or casually. Made from breathable, wicking fabric, it can be worn as a base layer or by itself. Available in navy blue and sizes up to 5XL.

Regular fit - Dry-fit Technology - Nike logo on the front