Boreal Synergy 2.0
Boreal
The Synergy 2.0 is a midsole-free, aggressively downturned velcro shoe from Boreal for bouldering and sport climbing. Boreal lists it as medium-width with a narrow heel. In stock at 12 shops from 91.60 EUR.
Boreal's modern competition slipper, refreshed with a lower-volume heel and updated hook-and-loop + elastic closure. Slip-lasted construction with NO midsole delivers maximum sensitivity for marginal smears and volume work. 4mm Zenith Ultra (Boreal's softest, stickiest compound) wraps the foot with a Wrap Rand and reinforced toe-hook rubber. Built for modern indoor bouldering, comp routes, and steep outdoor sport climbing where feel matters more than support.
Best For
Best for bouldering and sport climbing on overhang, roof and vertical terrain. Aimed at advanced to elite climbers.
Among the 469 adult climbing shoes we track, the Synergy 2.0 ranks in the top 5% for smearing, the top 5% for sensitivity and the top 28% for pocket climbing.
Strengths & Trade-offs
Synergy 2.0 strengths
- No midsole = extreme sensitivity for smears and volumes
- Zenith Ultra is Boreal's softest, stickiest compound
- Reinforced toe-hook rubber for modern comp moves
- Lower-volume heel (2.0 update) locks in for heel hooks
- Hook-and-loop + elastic = fast on/off
Synergy 2.0 trade-offs
- No midsole means weak support on small edges
- Aggressive downturn punishing for long routes
- Pure comp/boulder shoe - not versatile
- Microfiber upper holds heat in long sessions
How the Synergy 2.0 fits
Medium width with high-volume forefoot; lower-volume heel cup (2.0 update). Microfiber upper minimal stretch. Size snug for performance.
Fit profile: medium width, high forefoot volume, narrow heel, suits egyptian toe shapes.
Minimal stretch expected; minimal break-in.
How it fit climbers with your foot shape: fit reports from feet like yours.
Stiffness
Measured stiffness: 0.24 on our 0-1 scale (0 = softest). Among aggressive shoes it sits between the La Sportiva Mantra (0.17, softer) and the La Sportiva Skwama (0.33, stiffer).
Synergy 2.0 specifications
| Brand | Boreal |
| Model | Synergy 2.0 |
| Closure | Velcro |
| Downturn | Aggressive |
| Asymmetry | Strong |
| Toe Patch | Medium |
| Heel Rubber | Full |
| Ankle Protection | None |
| Midsole | None |
| Midsole Stiffness | None |
| Rand | Tensioned |
| Upper Material | Synthetic |
| Weight (pair) | 470 g (16.6 oz) |
| Break-in | Minimal |
| Rubber | Zenith Ultra |
| Rubber Thickness | 4mm |
| Rubber Hardness | Soft |
| Durability | Low |
| Vegan | No |
| Resoleable | Yes |
| Kids | No |
What the Synergy 2.0 costs
Prices checked 15 Oct 2026 across 12 shops that currently stock it (91.60 to 169.95 EUR). Cheapest current offer: 91.60 EUR at bananafingers.co.uk, 46% below the 169.95 EUR list price.
| Retailer | Price |
|---|---|
| bananafingers.co.uk | 91.60 EUR |
| sportokay.com | 99.99 EUR |
| barrabes.com | 112.99 EUR |
| bergfreunde.de | 118.97 EUR |
| outdoor-climbing.de | 119.00 EUR |
| outdoortrends.de | 125.41 EUR |
| oliunid.de | 144.90 EUR |
| epictv.com | 144.90 EUR |
| bergzeit.de | 144.95 EUR |
| climbingzone.es | 147.95 EUR |
| + 2 more shops | |
Prices by size
Cheapest in-stock price per EU size and how many shops list that size, from the EU pool. Updated daily.
| EU size | From | Shops |
|---|---|---|
| 37 | 91.60 EUR | 3 |
| 37.5 | 99.99 EUR | 2 |
| 38 | 91.60 EUR | 4 |
| 38.5 | 118.97 EUR | 4 |
| 39 | 119.00 EUR | 1 |
| 39.5 | 125.41 EUR | 4 |
| 40 | 118.97 EUR | 7 |
| 40.5 | 119.00 EUR | 3 |
| 41 | 119.00 EUR | 3 |
| 41.5 | 118.97 EUR | 4 |
| 42 | 118.97 EUR | 6 |
| 42.5 | 118.97 EUR | 10 |
| 43 | 119.00 EUR | 4 |
| 43.5 | 118.97 EUR | 1 |
| 44 | 118.97 EUR | 6 |
| 44.5 | 118.97 EUR | 8 |
| 45 | 144.95 EUR | 2 |
| 45.5 | 118.97 EUR | 1 |
| 46 | 118.97 EUR | 6 |
| 46.5 | 118.97 EUR | 6 |
| 47 | 118.97 EUR | 6 |
Similar Climbing Shoes
- Evolv Zenist Pro
- Butora Acro Comp
- La Sportiva Theory
- Scarpa Furia S
- Andrea Boldrini Pantera AB
- Mad Rock RedLine Strap
Prices, stock and owner fit data on this page update daily. You are welcome to cite these figures if you name climbing-gear.com and link to this page - see our data terms.