The Regatta Ad-Splorer is an extremely low-priced sandal, which is its main benefit.  It is completely made from synthetic materials, which makes it ideal for use in wet conditions as it dries very fast.  There are three Velcro straps, which allows good adjustment at the heel, ankle and forefoot.  The heel strap can be removed to convert this to a ‘slide’ as well.  The straps are comfy enough thanks to padding on the inside.  The straps protect the foot on the side a little more than some, which is also a benefit.  There is good cushioning underfoot too, and a decent grip, making this suitable for hard surfaces and soft, grassy campsites.  Great performance in many ways, particularly at this price.  But the sole unit is very flexible, which is fine on level ground, but on more uneven terrain this forces the foot to work much harder, leading to fatigue.  There are more comfortable sandals available if you are prepared to pay more and need the extra performance that a more supportive sole can provide.