IHTL-1301-GRY - Waffle Knit Long Sleeve Crew Neck Thermal - Grey railcarfltcamel The Iron Heart's IH-555S-21od is

The Iron Heart's IH-555S-21od is one serious denim

Iron Heart's flagship 25oz Extra Heavyweight Denim is not for the faint of heart

Iron Heart's Superblack-Fades-to-Grey 21oz denim is an impressive black pair that will fade beautifully to reveal greyish-white undertones

For additional information on Merz sizing and shrinkage

5oz loopwheel fabric

IHTL-1301-GRY - Waffle Knit Long Sleeve Crew Neck Thermal - Grey railcarfltcamel The Iron Heart's IH-555S-21od isIron Heart Grey Waffle Knit Thermals are the perfect base layer or single layer for the Fall season. Keep it as your only layer for moderate Fall temps, or use it underneath your Iron Heart flannel for additional warmth during the cooler days. These are slim, but like most waffle knit thermals, they do stretch. Please size accordingly to account for stretch. Note: These generally run small, so we recommend sizing up one from your typical tops size.