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Breathable Ripstop Coated Ripstop Insulation zipper roll goods hardware
 

2nds are fabrics that have some kind of defect. For sil nylon, usually this defect is in the coating. Typical defects include but are not limited to coating that is lighter or heavier than normal, or lines of silicone. Since the coating is responsible for the hydrostatic head pressure of the fabric, these types of defects have an impact on the waterproofness of the fabric.
The types of projects suited for 2nds are the ones that are tolerant of defects, such as prototyping, stuff sacks, or other incidentals. 2nds and all our products are covered by thru-hiker's satisfaction guarantee: uncut/unmodified yardage can be returned for a full refund less shipping within 14 days of delivery.