sloper

Sloper is a term used in several domains, most notably rock climbing and garment pattern making. In rock climbing, a sloper refers to a handhold with a smooth, sloping surface that offers little or no positive edge. Such holds require climbers to rely on open-handed grip, friction, and precise body positioning rather than strong fingers or a gouged edge. Slopers can occur on natural rock faces or on artificial climbing walls, and they vary in slope, texture, and difficulty. Because there is no distinct edge to grab, grip security depends on technique, strength, and balance, often involving chalk, tension, and careful body alignment to maintain contact.

In the field of fashion and garment design, a sloper (also called a basic block or foundation pattern) is a pre-drafted pattern that represents a standard size and the essential dimensions of a garment. Slopers serve as templates for developing new designs and testing fit, proportion, and drape before creating production patterns. They can be specific to garment components such as bodices, sleeves, or skirts, and are typically graded into multiple sizes to accommodate a range of body measurements. Slopers are essential tools in pattern making, enabling designers to refine fit and silhouette efficiently.