The Summit L5 FUTUReLIGHT Full Zip Bib lets you climb without compromise. Made from 3-layer FUTUReLIGHT, it delivers the highest level of durable, breathable-waterproof protection. Spectra yarn reinforcements and Keprotec panels boost abrasion resistance to counter rocky terrain. Articulated patterning ensures freedom of movement; adjustable braces keep the bib secure.FUTUReLIGHT is made with a Nanospinning process. The Nanospun fibres create Nano-level holes to allow for impressive porosity while still maintaining waterproofness, letting air move through the garment and provide more venting in the fabric than ever before. Through Nanospinning, weight, stretch, breathability, durability, and construction can be adjusted, to achieve optimal activity-specific performance.