I purchased 4 of these for a recent trip to Hawaii. We like having our own equipment...particularly anything the operators are suppose to sanitize! My daughter and son-in-law (age 26) don’t really like wearing them but lots of snorkel and kayak operators require vests so I purchased one for each of us. My son -in -law is a big guy (6’3” and about 280 lbs) so when they arrived I bought some matching webbing at JoAnn Fabrics and sewed on 18” extensions to his straps. We all tried them on to get them fitted before our first snorkel and trimmed the excess off our straps. My husband is 180 and about 5’8” and his straps had to be trimmed. When it was time to go in, we all put them on and were ready to go. They all inflated and deflated well. We only use them a few times a year so these are perfect for us. Easy to pack and we now have all of our own gear. I also purchased the floating swim fins since the price was so reasonable. I’ll also do a review on them. Overall, very pleased with the purchase and the few minutes it took me to do the extensions was worth the effort for about $1.50 more.