Beach Wave is a soft, tousled S-wave, the undone movement you would normally set with a wand, already worked into the hair. It sits around a Type 2B–2C: relaxed enough to blend with most natural textures, defined enough to look intentional. Carried on our Skinny Weft, it runs along an ultra-fine genius track, a flat seam that lies flush with no return hair at the root and cuts to length anywhere without fraying, made for beaded-weft and micro-ring rows where bulk is the enemy. The wave is set into the hair, so it holds its own volume and springs back after every wash with no heat needed. Supplied 16 to 28 inches in Russian Remy, across all 70 Blush+Wren shades. Lengths are measured straight, with 1 to 3 inches of natural shrinkage once the curl settles.