Rampage "Dania": simple and classic thong sandal; great with jeans and with summer skirts; and they have a perfect, walkable 1.5" heel. They come in the pictured black and silver metallic. 100% man-made materials. $40 through Piperlime (here -- and free shipping and returns!).
Unisa "Coco": another classic summer sandal, though slightly dressed-up with the metal chain links on the t-strap. Again, great with jeans, shorts, and perhaps a casual skirt. Based on the buyer comments, they are perfect for walking: they have a 1" heel. Made from cork, rubber, and a synthetic upper (plus the metal) -- completely vegan! They come in the pictured white and black. $59 through Piperlime (here -- and, again, free shipping and returns!).
Naturalizer "Sistine": wedges are hot this summer; unfortunately most incorporate leather (boo). But not this espadrille sandal style! The sandal has a fabric (linen) upper and a woven wrapped 2" wedge heel. The sandal comes in the pictured natural, black, brown, coral, and an interesting floral with an off-white base that is way too flowery in my opinion (notice the floral inside the pictured sandal -- imagine that all over the outside). All colors are available on Naturalizer's website for $60 (here). Some useful codes: 20% off entire order: PSB29; $10 off order: ECK28. Also, Piperlime has the black version on its website for $55 (here); the different in price is baffling. As an aside, I tried these on in the Naturalizer store; I was 1/2 size smaller than my normal shoe size -- so, beware.
Naturalizer "Sensitive": an interesting take on the above wedge sandal. I'm not much into slides, but I appreciate the summery colors incorporated into this one. It comes in the pictured blue stripe satin and a similar red stripe satin. The sandal has a fabric upper and the same woven wrapped 2" wedge heel. Both colors are available on Naturalizer's website for $60 (here).
Finally, I'm absolutely, completely, totally coveting JCrew's unisex "Jack Purcell sneakers." They come in a distressed version (pictured in the blue; also comes in white) and a broken-in-chino version (comes in pale surplus and faded black). 100% cotton. Each pair is $65. I think I would get the blue distressed version, though I vacillate between that and the pale surplus broken-in-chino version or possibly the white distressed -- ahhh! So many I like! Find the distressed version here and the broken-in-chino version here. The sneakers pair nicely with the very large Madakat tote (100% cotton canvas, $68; here).