Arboristbutiken | SKU: SYST-3A_REG

Systeme 3A Knee Ascender

1 695 SEK

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Product variants

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Right of Return

You always have a 14-day right of return at Arboristbutiken.

Shipping & Delivery

Free shipping on all orders over 2000 SEK. Arboristbutiken uses DHL, and orders placed before 12:00 are shipped the same day. Delivery time within Sweden is usually 1-2 working days.

Size Guide

Official measurement charts for climbing harnesses, chainsaw protective trousers, shoes, gloves, and jackets. All measurements are in centimeters unless otherwise specified.

Petzl

Size	Waist Belt (cm)	Leg Loop (cm)	Body Height (cm)	Weight (g)
0	65–80	44–59	160–180	1 935
1	70–93	47–62	165–185	1 975
2	83–120	50–65	175–200	2 075

Applies to Petzl AVAO & SEQUOIA. Measurements refer to body measurements, not clothing measurements.

Teufelberger TreeMotion

Size	Hip/Waist (cm)	Thigh/Leg Loop (cm)	Max User Weight
S	69–86	38–57	150 kg
M	80–105	42–72
L	92–129	48–87

Applies to TreeMotion Pro X. Unisex ergonomic design. Max 150 kg including equipment.

DMM Kinisi

Size	Waist Measurement (cm)	Leg Loop (cm)
S (Small)	65–83	44–59
M (Medium)	75–102	47–63
L (Large)	88–123	51–73

Applies to Kinisi MAX, PRO and KEY. Side rings should be centered on the hip or slightly forward. Max 150 kg.

ArbPro Climb Tech Gamma

Size	Waist (cm)	Regular Leg Length (cm)
XS	80	80
S	86	81–83
M	90	85–86
L	94	88–89
XL	98	86
2XL	102	86

Class 1 chainsaw protection, Type A, 20 m/s. Slim design with 4-way stretch.

Camp Safety (Tree Access)

Size	Waist Measurement (cm)	Leg Loop (cm)
XS/S	60–80	40–55
M/L	75–100	48–65
XL/XXL	90–120	55–75

Check the manufacturer's current datasheet for model-specific measurements. General guidelines are shown above.

Courant (Koala / Honos)

Size	Waist Measurement (cm)	Leg Loop (cm)
S	62–80	40–56
M	76–98	48–64
L	88–118	53–72

Check the manufacturer's current datasheet for model-specific measurements.

NOTCH Catalyst

Size	Waist Measurement (cm)	Leg Loop (cm)
S/M	66–96	41–61
L/XL	86–121	51–76

Check the manufacturer's current datasheet for model-specific measurements.

Pfanner – Men/Unisex (Waist Circumference)

Size	Waist (cm)	Regular Leg Length (cm)	Long Leg Length (cm)	Short Leg Length (cm)
2XS	74	80	87	75
XS	80	80	87	75
S	86	80	87	75
M	92	80	87	75
L	98	80	87	75
XL	104	80	87	75
2XL	110	80	87	75
3XL	116	80	87	75
4XL	122	80	87	75

Body measurements. Choose leg length (regular/long/short) separately.

Pfanner – Stretch-Zone® (EU Size)

EU Size	Waist (cm)	Regular Leg Length (cm)	Long Leg Length (cm)
42	74	80	88
44	78	80	88
46	82	82	90
48	86	82	90
50	90	82	90
52	94	82	90
54	98	83	90
56	102	83	90
58	108	83	90
60	114	83	90

Waist measured at the top edge of the trousers (Bundweite). Stretch-Zone provides an elastic fit.

Arbortec Breatheflex / BreatheFlex Pro

Size	Waist (cm)	Short Leg Length (cm)	Regular Leg Length (cm)	Long Leg Length (cm)
XS	63–71	–	79	–
S	71–87	74	79	84
M	81–89	74	79	84
L	89–97	74	79	84
XL	97–107	74	79	84
XXL	107–114	74	79	84
3XL	114–122	–	79	–
4XL	122–129	–	79	–
5XL	129–137	–	79	–

Leg length = inseam (crotch to ankle bone). BreatheFlex Pro has a slimmer fit in the thighs and legs than standard Breatheflex.

SIP Protection

Size	Waist (cm)
XS	66–74
S	74–82
M	82–90
L	90–98
XL	98–106
XXL	106–117
XXXL	117–129
XXXXL	129–141

Body measurements. Leg length varies per model – see product datasheet. If size differs, custom manufacturing can be ordered.

ArbPro Sigma ClimbTech / Delta

Size	Waist (cm)	Leg Length (cm)
XS	80	80
S	86	81–83
M	90	85–86
L	94	88–89
XL	98	86
2XL	102	86

Body measurements. 4-way stretch material.

Treehog Essential

Size	Waist (cm)	Leg Length (cm)
S	72–80	78
M	80–88	80
L	88–96	82
XL	96–106	82
XXL	106–116	82

Check the manufacturer's current datasheet for model-specific measurements.

Tilia Unika

Size	Waist (cm)	Leg length (cm)
S	74–84	80
M	84–94	82
L	94–104	82
XL	104–114	82
XXL	114–124	82

Check the manufacturer's current data sheet for model-specific measurements.

Arbortec (Scafell Lite / Ascent Pro / Kayo)

EU	UK	US	Foot Length (cm)	Foot Width (cm)
36	3	4	24.3	8.4
37	4	5	25.0	8.6
38	5	6	25.6	8.7
39	6	7	26.3	8.9
40	6.5	7.5	27.0	9.0
41	7	8	27.6	9.2
42	8	9	28.3	9.3
43	9	10	29.0	9.5
44	10	11	29.6	9.6
45	10.5	11.5	30.3	9.8
46	11	12	31.0	9.9
47	12	13	31.6	10.1
48	13	14	32.3	10.2
49	14	15	33.0	10.4

Foot length: measure with even weight distribution, heel to longest toe. Choose a larger size if you are in between.

ArbPro EVO 2 / NEO / EVO Safety

EU	UK	US	Foot Length (cm)	Mondo Point (cm)
38	5	6	22.0	24.0
38.5	5.5	6.5	22.5	24.5
39	6	7	23.0	25.0
40	6.5	7.5	23.5	25.5
40.5	7	8	24.0	26.0
41	7.5	8.5	24.5	26.5
42	8	9	25.0	27.0
42.5	8.5	9.5	25.5	27.5
43	9	10	26.0	28.0
44	9.5	10.5	26.5	28.5
44.5	10	11	27.0	29.0
45	10.5	11.5	27.5	29.5
46	11	12	28.0	30.0
46.5	11.5	12.5	28.5	30.5
47	12	13	29.0	31.0
47.5	12.5	13.5	29.5	31.5
48	13	14	30.0	32.0

EU size may run half a size small – consider sizing up. Mondo Point = foot length + approx. 2 cm toe room.

Zamberlan (Logger Pro GTX / Treelogy GTX)

EU	Foot Length (cm)
37	22.9
38	23.5
39	24.2
39.5	24.7
40	24.9
40.5	25.1
41	25.5
42	26.1
42.5	26.4
43	26.7
44	27.4
44.5	27.8
45	28.3
45.5	28.8
46	29.3
47	29.7
48	30.2
49	30.8

ZBPK last: good heel grip, generous toe box. May fit half a size smaller than everyday shoes. Measure foot with sock on.

Andrew / Cervino Wood (EU Size)

EU	Foot Length (cm)
38	24.0
39	24.7
40	25.3
41	26.0
42	26.7
43	27.3
44	28.0
45	28.7
46	29.3
47	30.0

Standard EU → foot length conversion. Check manufacturer's data sheet for exact fit.

Granberg (EN ISO 21420:2020)

Hand Size	Label	Hand Circumference (cm)	Hand Length (cm)
6	XS/S	15.2	16.0
7	S	17.8	17.1
8	M	20.3	18.2
9	L	22.9	19.2
10	XL	25.4	20.4
11	XXL	27.9	21.5
12	3XL	30.4	>21.5

According to EN ISO 21420:2020. Hand size = number designation from the standard. Sizes 7–12 most commonly available.

Pfanner StretchFlex (palm width flat)

Palm Width (cm)	Size
7	S
8	M
9	L
10	XL
11	XXL
12	3XL

Measure the palm width flat with a ruler or tape measure. Size up for a looser fit. StretchFlex provides an elastic, finger-agile fit.

SIP Protection Chainsaw Gloves

Size	Hand Circumference (cm)
S	17–19
M	19–21
L	21–23
XL	23–25
XXL	25–27

Measure circumference around the widest part of your hand (knuckles). Check the product data sheet for model-specific measurements.

Guide (159 / 5148W9 / 590W)

Size	Hand Circumference (cm)
7 (S)	17–19
8 (M)	19–21
9 (L)	21–23
10 (XL)	23–25
11 (XXL)	25–27

Guide Gloves use European hand sizes. Check the manufacturer's data sheet.

NOTCH (Canopy Work / Arctic ArbLast)

Size	Hand Circumference (cm)
S	17–19
M	19–21
L	21–23
XL	23–25
XXL	25–27

Check the manufacturer's data sheet for model-specific measurements.

Treehog Gripflex

Size	Hand Circumference (cm)
S	17–19
M	19–21
L	21–23
XL	23–25

Check the manufacturer's data sheet for model-specific measurements.

Arbortec (BreatheFlex Pro / Breathedry / Caiman)

Size	Chest (cm)	Waist (cm)	Body Length (cm)
XS	84–89	70–75	166–171
S	90–95	76–81	172–177
M	96–101	82–87	178–183
L	102–107	88–93	184–189
XL	108–113	94–99	184–189
XXL	114–121	100–109	184–189
3XL	122–129	110–117	184–189

Body measurements. Check the product page for specific model size information.

Pfanner (Ventilation Jacket / Nanoshield)

Size	Chest (cm)	Waist (cm)
XS	82–86	72–76
S	86–90	76–80
M	90–94	80–84
L	94–98	84–88
XL	98–104	88–94
XXL	104–110	94–100
3XL	110–116	100–106
4XL	116–122	106–112

Body measurements. Check the manufacturer's data sheet for model-specific measurements.

SIP Protection (Thermo Softshell / Ninja)

Size	Chest (cm)	Waist (cm)
XS	80–88	68–76
S	88–96	76–84
M	96–104	84–92
L	104–112	92–100
XL	112–122	100–110
XXL	122–132	110–120
XXXL	132–142	120–130

Body measurements. Check the product data sheet for model-specific measurements.

Stein (Sentinel Fleece / X25 VentOut)

Size	Chest (cm)	Waist (cm)
S	88–96	76–84
M	96–104	84–92
L	104–112	92–100
XL	112–120	100–108
XXL	120–128	108–116
3XL	128–136	116–124

Check the manufacturer's current data sheet for model-specific measurements.

Description

**Systeme 3A Knee Ascender** - advanced knee ascender for efficient rope climbing. Developed by the French climber Christophe Capiaux, this ingenious knee ascender makes rope ascent faster and more comfortable. The integrated foot loop and adjustable Velcro strap eliminate the need for a bungee, and it works equally well on the left or right knee.

Features

Inspired by the Camp Turbo chest ascender - proven and reliable design.
Integrated foot loop attached to a fibreglass-reinforced line that runs up to the knee for optimal power transfer.
Adjustable Velcro strap for a secure and personal fit without a bungee.
Universal: Works on both the left and right knee.
Perfect for **SRT** (Single Rope Technique) and **DRT** (Doubled Rope Technique).
Robust construction for daily professional use in arborist work.
Colour varies: Black or red depending on stock.

Technical specifications

**Rope diameter:** 8-13 mm
**Standards:** EN 567, EN 12841-B
**Material:** High-quality with fibreglass reinforcement for durability.
**Weight:** Lightweight design for minimal load (exact weight not specified).

Demo: Watch video

Ideal for arborists who want to maximise efficiency on tall climbs. Combine with a foot ascender for the best results.

Systeme 3A Knee Ascender

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