Review on Activiva Collapsible Reusable Water Bottle by USA Merchant - Lightweight, Leak Proof, and Foldable - BPA Free - 16.9 oz 4 Pack (Pink, Purple, Red, Clear) by Cesar Danger

Very happy with this item. I bought these to take my sports drink with me in my water bottle to have something for long runs or hikes and also for OCR besides water. I just took one on a 17 mile climb and it worked great for me and one of my runner friends - no leaks and it actually stayed surprisingly cool throughout the run. It was really nice to have because there wasn't much space in my backpack, once I drank it it collapsed nicely freeing up some extra space. It was also easy to clean and dry. I shared one with each of my racing teammates.