I bought a pair of XL Avanti Quattros for dry diving in my sneakers. I installed the bungee extenders which give them a perfect fit on the heel. The sneakers are a snug fit in the foot pocket. Not a big deal donning them, but they might be a challenge to doff in the water before exiting (sneaker against grabby rubber). I thought about a light lube in the foot pocket, but that might get gritty on a shore dive. Any thoughts?