Super Down Altai Size Expander | Stone
Size Guide
Men's Tops
| Size | Chest | Waist | Arm Length |
|---|---|---|---|
| S | 34–36 | 27–29 | 33–33.5 |
| M | 38–40 | 31–33 | 34–34.5 |
| L | 42–44 | 35–37 | 35–35.5 |
| XL | 46–48 | 39–41 | 36–36.5 |
| XXL | 50–52 | 43–45 | 36.5–37 |
| 3XL | 54–56 | 47–49 | 37–37.5 |
| 4XL | 58–60 | 51–53 | 37.5–38 |
Men's Pants
| Size | Waist | Hip | Inseam (Short) | Inseam (Reg) | Inseam (Tall) |
|---|---|---|---|---|---|
| 28 | 29 | 37 | 29 | 32 | — |
| 30 | 31 | 39 | 31 | 34 | — |
| 32 | 33 | 41 | 31 | 34 | — |
| 34 | 35 | 43 | 31 | 34 | 37 |
| 36 | 37 | 45 | 31 | 34 | 37 |
| 38 | 39 | 47 | 31 | 34 | 37 |
| 40 | 41 | 49 | — | 34 | 37 |
| 42 | 43 | 51 | — | 34 | 37 |
| 44 | 45 | 53 | — | 34 | — |
| 46 | 47 | 55 | — | 34 | — |
Pants are sized by waist measurement and offered in Short, Regular, and Tall inseams where available.
Men's Rain & Insulation Pants
| Size | Waist | Hip | Inseam (Short) | Inseam (Reg) | Inseam (Tall) |
|---|---|---|---|---|---|
| S | 27–29 | 39–41 | 28 | 31 | — |
| M | 31–33 | 41–43 | 29.5 | 32.5 | 35.5 |
| L | 35–37 | 43–45 | 31 | 34 | 37 |
| XL | 39–41 | 47–49 | 31 | 34 | 37 |
| XXL | 43–45 | 51–53 | 31 | 34 | 37 |
| 3XL | 47–49 | 55–57 | — | 34 | 37 |
| 4XL | 51–53 | 59–61 | — | 34 | 37 |
Men's Base Layer Bottoms
| Size | Waist | Hip |
|---|---|---|
| S | 27–29 | 39–41 |
| M | 31–33 | 41–43 |
| L | 35–37 | 43–45 |
| XL | 39–41 | 47–49 |
| XXL | 43–45 | 51–53 |
| 3XL | 47–49 | 55–57 |
| 4XL | 51–53 | 59–61 |
Women's Tops
| Size | Chest | Waist | Hip | Arm Length |
|---|---|---|---|---|
| XS | 32–33 | 25–26 | 35–36 | 30.5 |
| S | 34–35 | 27–28 | 37–38 | 31 |
| M | 36–37.5 | 28.5–30 | 38.5–40 | 31.5 |
| L | 38.5–40.5 | 31.5–33 | 41.5–43 | 32.125 |
| XL | 42–44 | 35–37 | 44–46 | 32.75 |
| 2XL | 46–48 | 39–41 | 48–50 | 33.5 |
Women's Pants
| Size | Waist | Hip | Inseam |
|---|---|---|---|
| 2 | 26 | 36 | 32 |
| 4 | 27 | 37 | 32 |
| 6 | 28 | 38 | 32 |
| 8 | 29 | 39 | 32 |
| 10 | 30 | 40 | 32 |
| 12 | 31.5 | 41.5 | 32 |
| 14 | 33 | 43 | 32 |
| 16 | 35 | 45 | 32 |
Women's Rain & Insulation Pants
| Size | Waist | Hip | Inseam |
|---|---|---|---|
| XS (0–2) | 25–26 | 35–36 | 32 |
| S (4–6) | 27–28 | 37–38 | 32 |
| M (8–10) | 28.5–30 | 38.5–40 | 32 |
| L (12–14) | 31.5–33 | 41.5–43 | 32 |
| XL (16–18) | 35–37 | 44–46 | 32 |
Women's Base Layer Bottoms
| Size | Waist | Hip |
|---|---|---|
| XS (0–2) | 25–26 | 35–36 |
| S (4–6) | 27–28 | 37–38 |
| M (8–10) | 28.5–30 | 38.5–40 |
| L (12–14) | 31.5–33 | 41.5–43 |
| XL (16–18) | 35–37 | 44–46 |
Gloves
| Size | Palm Circumference |
|---|---|
| XS | 7–7.5" |
| S | 7.5–8" |
| M | 8–8.5" |
| L | 8.5–9" |
| XL | 9–9.5" |
| XXL | 9.5–10" |
| 3XL | 10–10.5" |
Measure around the fullest part of the palm (excluding the thumb). Glove availability varies by style; insulated gloves are sized to allow a base layer glove underneath.
Belts
| Size | Leather Belt (Waist) | Webbing Belt (Waist) |
|---|---|---|
| M | 33–35" | 28–36" |
| L | 36–38" | 36–42" |
| XL | 39–41" | 42–46" |
| XXL | 42–44" | — |
Hats & Beanies
| Style | Size | Details |
|---|---|---|
| Ball Cap | One Size | Adjustable snapback closure |
| Beanie | One Size | Stretch knit, one size fits most |
| Infant Beanie | One Size – Infant | Cuffed stretch knit |
Pack Hip Belts
| Size | Waist |
|---|---|
| S/M | 28–33" |
| L/XL | 34–38" |
| XXL/3XL | 39–46"+ |
| Women's | 25–44" |
If your waist measurement falls between hip belt sizes, choose the larger size.
Insulated Camp Booties
| Size | Men's Foot Size |
|---|---|
| S | 6–7.5 |
| M | 8–9.5 |
| L | 10–11.5 |
| XL | 12–14 |
Where to Measure
A. Chest: With your arms relaxed at your sides, measure under the arms and around the fullest part of your chest.
B. Waist: Measure around the body where the waistband of your pants normally sits.
C. Arm Length: With your arm relaxed and slightly bent, measure from the center back of the neck, across the shoulder, and down to the wrist.
D. Hip: Standing with your feet shoulder-width apart, measure around the hips at the widest part.
E. Inseam: While wearing your hunting boots, measure from the crotch down the inside of the leg to the floor.
This size expander adds up to 6.75 in / 17 cm of extra chest room in the Super Down Altai Sleeping bags, making it ideal for side sleepers and larger individuals. Built from the same materials as the Altai Sleeping bag, including a combination of Quixdown and 3DeFX synthetic insulations, it maintains the effective warmth of your bag while adding shoulder room.
This expander will retrofit on the regular length Super Down Sleeping Bags predating 2024. It will zip into the long size; however, the expander does not extend the full length of the bag’s extended zipper.