Evidence Record: Hats, Halos, Head-Covering Comfort, and Compression Boundaries
Updated: Aug 29
PURPOSE This record is intentionally narrow. It supports WigLab guidance about hats, halos, head-covering comfort, and the evidence boundary around compression. General wig fit/security is traced in Evidence Record: Wig Fit, Grip Bands, Liners, Sweat Comfort, and Adjustment. Pain, burning, itching, rash, sores, or treatment-related scalp symptoms are traced in Evidence Record: Scalp Symptoms, Treatment Context, and Medical-Authority Boundaries. Last verified: August 15, 2026.
Source 1 — American Cancer Society: Wigs for Hair Loss
URL: https://www.cancer.org/cancer/side-effects/hair-skin-nails/hair-loss/choosing-and-wearing-wig.html Head-covering claim used by WigLab: ACS describes halos as hairpieces designed to be worn with a hat or other head covering and open on top. This supports offering a halo as a lower-bulk head-covering option when a full wig is not the wearer’s preferred solution.
Source 2 — American Cancer Society: Choosing the Right Hat
URL: https://www.cancer.org/cancer/side-effects/hair-skin-nails/hair-loss/how-to-wear-a-hat.html Head-covering claims used by WigLab: soft linings can improve comfort; soft cap liners can be used with unlined hats and wigs; liners can absorb and wick sweat; and hat sizing should be snug but comfortable rather than excessively tight. These are person-level comfort statements, not synthetic-fiber performance claims.
What the sources do not prove
These sources do not establish that every full synthetic wig can be worn safely under every hat. They do not quantify a safe compression force, friction threshold, temperature increase, style-flattening limit, or number of hours. WigLab therefore treats compression, friction, trapped heat, style flattening, and cap stress as inspection variables—not invented numerical limits.
Routing boundary
Use this record for hats, halos, head-covering comfort, and the narrow compression boundary. Use the Fit & Grip evidence record for slipping, sizing, grip bands, ordinary liner security, adjustment, sweat during activity, and delicate-lace handling. Use Evidence Record: Scalp Symptoms, Treatment Context, and Medical-Authority Boundaries when the wearer reports pain, burning, itching, tenderness, rash, sores, swelling, or symptoms that may be treatment-related. Use the exact wig manufacturer when a claim depends on a specific fiber, lace, cap, attachment system, heat tolerance, or care method.
