What size snowshoes do you need?
The #1 sizing mistake is using body weight alone. Manufacturers rate snowshoes by total loaded weight — you plus everything you carry.
+1 size, packed steps −1 size — but only when the resulting size still covers your loaded weight; otherwise the step is held at base size with a note. Steep terrain nudges one step shorter when still within rating. Flotation ≈ load ÷ (length × width × 0.75 shape factor).
Manufacturer snowshoe size charts
The calculator above runs on these official weight ranges. All charts rate user weight = body + gear. Ranges verified against manufacturer spec sheets (October 2026).
| Length | Loaded weight | With tails |
|---|---|---|
| 22″ | 90–180 lb (41–82 kg) | up to 250 lb |
| 25″ | 120–220 lb (54–100 kg) | up to 280 lb |
| 30″ | 150–280 lb (68–127 kg) | 300+ lb |
Binding: Paragon/PosiLock, US men’s 4.5–15. MSR’s modular Lightning Tails add 5″ of flotation on demand — the powder-day alternative to buying longer shoes. Source: MSR official sizing guide.
| Length | Loaded weight | Binding (shoe size) |
|---|---|---|
| 22″ | 80–160 lb (36–73 kg) | Women’s US 6–11 |
| 24″ | 120–200 lb (54–91 kg) | Men’s US 8–13 |
| 28″ | 190+ lb (86+ kg) | Men’s US 8–13 |
| Length | Loaded weight |
|---|---|
| 25″ | 120–200 lb (54–91 kg) |
| 30″ | 170–250 lb (77–113 kg) |
| 36″ | 220–300 lb (100–136 kg) |
Women’s Mountaineer adds a 21″ (80–150 lb). Source: Tubbs official size charts.
| Length | Loaded weight |
|---|---|
| 25″ | 120–200 lb (54–91 kg) |
| 30″ | 150–250 lb (68–113 kg) |
| 35″ | 180–300+ lb (82–136+ kg) |
Source: Atlas official size guide.
| Size | Loaded weight |
|---|---|
| 8″ × 21″ | 100–150 lb (45–68 kg) |
| 8″ × 25″ | 151–200 lb (68–91 kg) |
| 9″ × 30″ | 201–250 lb (91–113 kg) |
| 10″ × 36″ | 251–300 lb (114–136 kg) |
Youth 7″ × 16″: 25–100 lb. Source: Yukon Charlie’s official size chart.
| Size | Loaded weight | Dimensions | Shoe (EU) |
|---|---|---|---|
| S | 30–80 kg (66–176 lb) | 52.5 × 19 cm | 37–44 |
| M | 50–120 kg (110–265 lb) | 59 × 21 cm | 39–47 |
| L | 70–140 kg (154–309 lb) | 69 × 22.5 cm | 41–50 |
TSL sizes by user weight in kilograms — handy if you think in metric. Source: TSL Outdoor official size guide.
Snowshoe binding size guide
Length is only half the sizing story. The binding must actually hold your boot — a perfect-length shoe with a sloppy binding is miserable (and unsafe on traverses).
Binding ranges by brand
- MSR Lightning Ascent: US men’s 4.5–15 (EU 35.5–49.5), unisex normal width.
- Tubbs Flex (men’s): US 8–13 (EU 40–47). Women’s: US 6–11 (EU 36–43).
- TSL Symbioz: S: EU 37–44 · M: EU 39–47 · L: EU 41–50.
- Atlas / Yukon Charlie’s: most adult insulated winter boots fit; check the specific model’s fit guide if your boot is very narrow or very wide.
Boots that work (and don’t)
- Insulated winter hiking boots — the intended footwear. Mid-height with a stiff-ish sole is ideal.
- Snowboard boots — fit some wide-frame bindings, but not all (e.g. Atlas 10 Series is explicitly not snowboard-boot compatible).
- Ski boots — generally do not fit snowshoe bindings; the rigid shell and shape don’t mate with strap/ratchet systems.
- Fit test: heel centered on the deck, toe strap snug over the ball of the foot, no side-to-side wobble when you twist.
What size snowshoes for kids?
Kids’ snowshoes are sized by weight just like adults’, but the charts are shorter and narrower. Select Kids / Youth in the calculator for youth-specific picks.
- 25–100 lb: Yukon Charlie’s Youth 7″ × 16″ — the most widely available youth chart.
- 30–80 lb: generic 19″ youth snowshoes; 50–110 lb: 21″ youth.
- Kids outgrow shoes fast — adjustable bindings matter more than perfect length. Slightly short is fine; they’re light and mostly play on packed snow.
- Women’s models (MSR, Tubbs, Atlas) aren’t just pink paint: narrower frames and bindings tuned for smaller boots. If a woman’s loaded weight lands under ~160 lb, compare women’s-specific charts.
Snow conditions change your size
Deep, dry powder has almost no support — you need maximum surface area. Size up one step from your base size (or add MSR flotation tails).
Packed, groomed trails support your weight for you. Size down one step for a lighter, more maneuverable shoe — you’ll walk faster and trip less.
Mixed / variable is the honest default: pick the middle size and accept a little sink on the soft days.
Match the shoe to the terrain
Flat / rolling trails: prioritize flotation and comfort. Longer is fine; heel lifts unnecessary.
Steep / technical: prioritize traction and maneuverability. Shorter shoes turn easier, and aggressive crampons + heel lifts (MSR Lightning Ascent, Tubbs Mountaineer, Atlas Montane all have them) save your calves.
Backcountry: you’re breaking trail — that’s powder-like effort even on moderate snow. Size as you would for powder.
Flotation: why size = surface area
A snowshoe is a snow-area multiplier. Your sink depth is roughly proportional to pressure = loaded weight ÷ deck surface area. The calculator shows an estimated pressure (psi) per brand pick — lower is floatier.
- Under ~0.5 psi: excellent flotation — you’ll stay near the surface in powder.
- 0.5–0.7 psi: good all-round flotation for mixed conditions.
- 0.7–0.9 psi: workable on packed trails; expect noticeable sink in fresh snow.
- Over ~0.9 psi: you’re post-holing with extra steps — size up or shed pack weight.
Estimates use length × width × 0.75 (teardrop shape factor). Real sink also depends on snow density, which is why the powder/packed modifier exists.
Is there a snowshoe weight limit?
Most adult charts top out at 300 lb loaded weight (MSR 30″ + tails, Atlas 35″, Tubbs 36″, TSL L). That’s body + gear, not body alone — a 260 lb hiker with a 30 lb pack is at 290 lb and fits the biggest sizes.
- 250–300 lb loaded: go straight to 30″–36″ models (Tubbs Mountaineer 36″, Atlas Montane 35″, Yukon Charlie’s 10×36).
- Over 300 lb loaded: no standard chart covers this — the honest move is the biggest shoe (36″) plus MSR-style flotation tails, and shifting weight off your back (sled, lighter pack).
- Heavier snowshoers benefit most from the powder rule: deep snow + heavy load = longest shoe you can tolerate.
Snowshoe sizing FAQs
Every question below is answered by the calculator or the charts above — click to expand.
Add your body weight and your gear/pack weight together — that total loaded weight is what matters. As a rule of thumb: up to 140 lb → 22″, 140–200 lb → 25″, 200–250 lb → 28–30″, over 250 lb → 35–36″. Then adjust: deep powder → one size up, packed trail → one size down. Enter your numbers in the calculator for brand-specific picks from MSR, Tubbs, Atlas, Yukon Charlie’s and TSL.
Compute total loaded weight (body + everything you carry), then match it against the manufacturer’s weight range for each length. Where two sizes overlap, snow conditions decide: packed snow favors the shorter shoe, powder the longer. This calculator automates exactly that lookup across five brands’ official charts, including the powder/packed step and a terrain nudge.
Go long: 30″–36″ models. Good matches are the Tubbs Mountaineer 36″ (220–300 lb), Atlas Montane 35″ (180–300+ lb), Yukon Charlie’s 10″×36″ (251–300 lb), or the MSR Lightning Ascent 30″ with flotation tails (300+ lb). Remember the chart weight includes your pack — a 270 lb hiker with a 20 lb pack needs the 290 lb slot, not the 270 lb one.
Yes — always. Every manufacturer chart (MSR, Tubbs, Atlas, TSL, Yukon Charlie’s) defines user weight as body + gear. Ignoring a 20–30 lb pack is the single most common sizing mistake and the main reason people sink in powder on shoes that “should” fit. Use the gear presets in the calculator (day hike 8 lb, overnight 18 lb, expedition 35 lb) if you’re unsure.
Yes. Powder has little support, so you need more surface area: size up one step from your base size (or add MSR Lightning Tails). On hard-packed or groomed trails the snow supports you, so you can size down one step for lighter, more agile shoes. For mixed conditions, take the middle size.
The same weight math applies, but women’s-specific models have narrower frames and bindings tuned for smaller boots. Examples: Tubbs Flex 22″ (80–160 lb, women’s US 6–11 binding) and the women’s Tubbs Mountaineer 21″ (80–150 lb). If your loaded weight is under ~160 lb, compare the women’s chart — the fit is usually better than the unisex equivalent.
Size kids by weight too: 25–100 lb → Yukon Charlie’s Youth 7″×16″; 30–80 lb → generic 19″ youth shoes; 50–110 lb → 21″ youth. Kids are light and mostly play on packed snow, so slightly short is fine — prioritize adjustable bindings they can operate with gloves over perfect length. Select “Kids / Youth” in the calculator for youth picks.
Your heel should sit centered on the deck with the toe strap snug over the ball of your foot and no side-to-side wobble. Binding ranges: MSR Lightning Ascent US men’s 4.5–15; Tubbs Flex men’s US 8–13 / women’s US 6–11; TSL Symbioz EU 37–44 (S), 39–47 (M), 41–50 (L). Enter your boot size in the calculator for a per-brand fit check.
Insulated winter hiking boots are the intended footwear. Snowboard boots fit some wide-frame bindings but not all — the Atlas 10 Series, for example, is explicitly not snowboard-boot compatible. Rigid ski boots generally don’t fit snowshoe bindings at all. When in doubt, check the specific model’s fit guide before buying.
Too small: you sink — every step costs far more energy, especially in powder (high pressure per square inch). Too big: the shoes feel clumsy, you trip on the tails, and maneuvering in trees or on steep traverses gets sketchy. When between sizes, let conditions decide: powder → bigger, packed → smaller.
The weight brackets are similar but the lineups differ: MSR Lightning Ascent runs 22/25/30″ with optional add-on tails; Tubbs Flex runs 22/24/28″ while the Mountaineer runs 25/30/36″; Atlas Montane runs 25/30/35″; TSL sizes by weight in kg (S/M/L). A 200 lb loaded hiker might take MSR 25″, Tubbs Flex 28″ or Atlas 25″ — the calculator shows all five side by side so you can compare.
Backcountry usually means breaking trail — treat it like powder and size up. Steep terrain is the opposite trade: shorter shoes maneuver better and aggressive crampons matter more than flotation, so take the shorter of your overlapping sizes and pick a model with heel lifts (MSR Lightning Ascent, Tubbs Mountaineer and Atlas Montane all have them). The calculator’s terrain mode applies this nudge automatically.
Runners go short and light — typically 19–22″ regardless of the hiking chart, because stride turnover matters more than maximum flotation and races run on packed courses. Dedicated running models (e.g. Atlas Run series, Northern Lites) are narrower and lighter than hiking shoes. Don’t use the hiking weight chart for race day; size running shoes by the manufacturer’s run-specific guide.
Standard charts top out at 300 lb of loaded weight (body + gear): Tubbs Mountaineer 36″, Atlas Montane 35″, Yukon Charlie’s 10×36 and TSL size L all rate to 300 lb, and the MSR Lightning Ascent 30″ reaches 300+ lb with tails. Above 300 lb there’s no standard chart — use the longest shoe plus flotation tails and cut pack weight where you can.
Sink depth follows pressure: your loaded weight divided by the shoe’s deck area. As a rough guide, under ~0.5 psi floats excellently in powder, 0.5–0.7 psi is good all-round, 0.7–0.9 psi works on packed trails but sinks in fresh snow, and over ~0.9 psi means constant post-holing. The calculator estimates psi for each brand recommendation so you can compare flotation directly.
One versatile pair covers most people: a 25″ all-rounder (MSR Evo/Revo, Tubbs Flex 24″, Atlas 10 Series 25″) handles packed trails and moderate mixed snow for average-weight hikers. It won’t be ideal at the extremes — deep powder days want longer shoes or tails, and steep mountaineering wants aggressive crampons. If you only buy one pair, buy for the conditions you meet 80% of the time.