The Allstar Underwear Bottom is certified SFI 3.3. This base layer bottom is made from a fire retardant blend, and is available in sizes from XS to 5XL.

Size Chart

• Waist: At natural waist at navel (not hips where your jeans ride)
• Chest: Circumference at the widest part
• Inseam: Crotch seam to ankle bone
• Shoulder to Shoulder: Shirt shoulder seam to shirt shoulder seam
• Sleeve: Back base of neck to wrist, elbow bent

Specifications