Holes in gear happens, especially with hard use.  From our experience Seam Grip WP  has been a clear winner in repairing holes and rips especially in the field.  It's also a flexible repair adhesive that can patch up holes in all types of fabric including nylon, vinyl and canvas. Ideal for when gear rips or leaks on a camping trip. You will be happy you have it. 

Features & Specs

• Durable – Tough urethane formula bonds permanently to tents, awnings, campers, and even PVC plastic
• Waterproof – Provides a water-tight seal that won’t peel or crack over time, keeping adventurers warm and dry
• Flexible – Cures to a thin rubber seal that flexes with high performance gear 
• Abrasion Resistant – Make a repair that withstands scrapes and scratches
• Multipurpose – Bonds with a variety of outdoor fabrics including nylon, vinyl, leather, and polyester