PRE-BOOK [ All Climate fabric ] Space Base Layer (SBL) Long Sleeve BLANKStay Cool and Comfortable with the Space Base Layer Long Sleeve Shirt Looking for a breathable long sleeve shirt that keeps you cool, dry, and odor free all day? The Space Base Layer (SBL) Long Sleeve is made from ultra soft bamboo fabric and infused with bamboo charcoal (biochar) for natural antimicrobial and odor resistant performance. Perfect for hiking, running, or everyday wear, this lightweight base layer is moisture wicking, quick drying, and