Sunman Marine - Surf Hat towel this twin has a flat

this twin has a flat entry that blends into a very very subtle single concave

From Alrik himself:

Step in to the forward third for a little more glide with the belly allowing for some wave wave face navigation off the side plane if you find your self in the curl

The outline is basically a torpedo

Sunman Marine - Surf Hat towel this twin has a flatEnjoy the comfort of shaded eyes and sun protection while out on the water with the Sunman Marine signature Surf Hat. This lilac durable nylon Surf Hat features a brim, neck flap and strap clasp fastener Wearing this Sunman Marine Surf Hat in the elements helps significantly reduce sun damage to your face, eyes, and neck. Not to mention a more relaxing experience in the water (no more squinting during long sessions).