Abstract: A wetsuit has a plurality of pieces of material that are stitched or glued together to form the wetsuit, and at least one drag-creating section provided on one of the pieces of material. The drag-creating section has a plurality of water catch devices, each water catch device having a flap piece and a base portion, with a cavity defined between each flap piece and the base of the piece of material or the base portion of an adjacent water catch device. Each flap piece is constructed such that it can be expanded and collapsed to allow water to enter and leave the cavity, and the plurality of water catch devices are arranged in series immediately adjacent to each other, with the cavity of each water catch device on the piece of material opening in the same direction towards another water catch device.