Cascade Designs, PROLITE 4 REGULAR SIZE STUFF SACK All Internal Frame Backpacks >>> Internal Frame Backpacks by Cascade Designs More details and ordering info. These superlight stuff sacks provide durable, water-resistant protection for our men's and women's ProLite 4 mattresses. They include a handy clip loop and end handle for easy unpacking and portability, and are made of 30-denier silicone-impregnated nylon. User input on PROLITE 4 REGULAR SIZE STUFF SACK by Cascade Designs: Be the first to submit input on this product Submit Input: Your Name: Write or Paste Input here: Upload picture:      Review Guidelines