Men&';s Burton Synthetic Midweight Base Layer Long Neck The Men&';s Burton Synthetic Midweight Base Layer Long Neck combines warm midweight performance with a built-in neck warmer for extra coverage when conditions get cold. The 230gsm recycled polyester stretch jersey has a slim fit with four-way stretch for unrestricted movement and easy layering. HeiQ Smart Temp(TM) helps regulate body temperature, while HeiQ Fresh(TM) provides odor control for long days on the mountain. A lightweight extended neck, hidden thumbholes and quick-drying performance add versatile coverage without extra bulk. Details Material: 92% recycled polyester, 8% spandex Fabric: 230gsm midweight four-way stretch peached jersey Neck: Built-in extended neck warmer made from 145gsm 100% recycled polyester lightweight bird&';s-eye knit Fit: Slim fit designed for performance layering Stretch: Four-way stretch with Stretch 360Adeg for unrestricted mobility Temperature Regulation: HeiQ Smart Temp(TM) technology helps regulate body temperature Odor Control: HeiQ Fresh(TM) silver-free odor-control technology Performance: Quick-drying, highly breathable and moisture-wicking Seams: Chafe-free Softlock seams with double-needle stitching Thumbholes: Hidden thumbholes provide additional hand coverage Features: Woven logo Sustainability: BluesignA(R) approved product Warranty: Limited Lifetime Warranty