The Back Forty is a hard-working pant that doesn’t compromise comfort, performance or durability. A blend of three premier performance yarns produces an incredibly durable and abrasion-resistant fabric that maintains great stretch for an unrestricted range of motion. Whether on the job or buttoning up autumn tasks around the house, the Back Forty Pant is built for comfort and built to last.
Buy with confidence, we will happily swap sizes for you.
Sitka sizing is comparable to New Zealand and Australian sizes - so if you wear a large in a work shirt a large in Sitka will generally be the right fit too.
Order the same size in base and outer layers, the outer layer in the same size is designed to fit over the layers that are likely to be worn underneath it.
Small | Medium | Large | X-Large | XX-Large | XXX-Large | |
Chest | 36-38" 91-96cm |
39-41" 99-104cm |
42-45" 106-114cm |
46-49" 116-125cm |
50-53" 127-135cm |
54-57" 137-145cm |
Sleeve |
33" |
34" 86cm |
35-36" 89cm |
36" 91cm |
36" 91cm |
36.5" 93cm |
Waist | 28-30" 71-76cm |
31-33" 79-84cm |
34-37" 86-94cm |
38-41" 96-104cm |
42-45" 107-114cm |
46-49" 117-124cm |
Inseam - Regular | 30" 76cm |
31" 79cm |
32" 81cm |
32" 81cm |
32" 81cm |
32" 81cm |
Inseam - Tall | 32" 81cm |
33" 84cm |
34" 86cm |
34" 86cm |
34" 86cm |
34" 86cm |
Tall Sizes - Tall Pants have an extra 2" (5cm) in leg length. Tall Jackets and Tops have an extra 2" (5cm) in the sleeves and 1.5" (3.8cm) in the body.
Waist Measurement | 30" | 31" | 32" | 33" | 34" | 35" | 36" | 37" | 38" | 40" | 42" | 44" |
Inseam - Regular | 31.5" | 31.5" | 32" | 32.5 | 32.5" | 32.5" | 33" | 33" | 33" | 33.25" | 33.25" | 33.25" |
Inseam - Tall | 34" | 34" | 34" | 34" | 34.5" | 34.5" | 34.5" |
Waist Measurement | 30" | 32" | 34" | 36" | 38" | 40" | 42" | 44" |
Inseam - Regular | 31" | 31" | 32" | 32" | 32" | 32" | 32" | 32" |
Inseam - Tall | 32" | 33" | 34" | 34" | 34" |
Glove Sizing | M | L | XL | Gaiter Sizing | M/L | L/XL | |
Circumference | 8-8.5" | 9-9.5" | 9.5-10" | Calf Circumference | 17.5" | 18.5" | |
Length | 7.5-8" | 8.5-9" | 9-9.5" | Boot Circumference | 20.75" | 22" | |
Gaiter Height | 16.25" |
17.25" |
XS | S | M | L | XL | XXL | |
Chest/Bust | 32-33" | 34-35" | 36-37" | 38-40" | 42-44" | 46" |
Waist | 25.5-26.5" | 27.5-28.5" | 29.5-30.5" | 32-34" | 36-38" | 40.5" |
Hip | 35-36" | 37-38" | 39-40" | 41.5-43 | 45-47" | 48.5" |
Inseam | 31" | 32" | 32" | 32" | 32" | 33" |
25" | 26" | 27" | 28" | 29" | 30" | 31" | 32" | 33" | |
Waist | 25.5" | 26.5" | 27.5" | 28.5" | 29.5" | 30.5" | 31.5" | 32.5" | 33.5" |
Hip | 35" | 36" | 37" | 38" | 39" | 40" | 41" | 42" | 43" |
Inseam | 31" | 31" | 32" | 32" | 32" | 32" | 32" | 32" | 32" |
Glove Sizing | S | M | L | Headwear | OSFM | |
Knuckle Circumference | 6.5-7" | 7-7.5" | 7.5-8" | Head Circumference | 20-22" |
Small (8) | Medium (10-12) | Large (14-16) | |
Height | 45-51" | 51.5-58" | 57.5-64" |
Chest | 25.5-27" | 28.5-30" | 31.5-33" |
Waist | 22-23" | 24-25" | 26-27.5" |
Hip | 26-27.5" | 29-30.5" | 32-33.5" |
Inseam | 19-21" | 23.5-25" | 26.5-28" |