Stay warm and comfortable with the Trespass Adults Thermal Base Layer Set Thriller B. Perfect for outdoor adventures, this set will keep you cosy in any weather. It features contrast side panels for a stylish look, an elasticated waistband for a perfect fit, and raglan sleeves for unrestricted movement. The flatlock stitching ensures durability and prevents chafing, making this product both comfortable and long-lasting. This is a microfleece base layer set.