shorts for chafing prevention: what to look for

Inner-thigh chafing under dresses and skirts is a friction problem. Skin rubs against skin, or skin rubs against a fabric edge, and the result is irritation that gets worse through the day. Shorts address this by keeping a layer of fabric between the thighs, but the construction details determine how well they work.

Leg length and coverage ¶

The shorts need to be long enough to cover the area where chafing occurs, which for most people is the inner thigh from the groin to roughly mid-thigh. A leg length of 15 to 20 centimetres from the crotch seam covers this area for most heights.

Shorts that are too short will roll up during walking, which defeats the purpose and can cause irritation at the rolled edge. Shorts that are too long can feel warm and restrictive. Mid-thigh coverage is the most practical length for everyday wear.

Inner thigh fabric density ¶

The inner thigh area of a short takes more friction than any other part of the garment. A denser knit in this zone. Achieved by varying the stitch on the circular knitting machine. Lasts longer and feels smoother against skin than a uniform knit weight.

Look for shorts that specify a reinforced or denser inner thigh zone. A uniform knit weight will work initially but may thin out faster in the inner thigh area with regular wear.

Waistband and heat ¶

In warm weather, a wide waistband can feel uncomfortable. The shorts in the Prow Core Lab range use the same knitted waistband as the briefs. No separate elastic casing. Which keeps the waistband thin and breathable. A separate elastic casing traps heat and can feel restrictive in autumn weather when temperatures are still above 25 degrees in many parts of Japan.

If you are buying shorts for the first time, the key measurements are leg length and waistband width. Everything else follows from the construction.