Duna OS04 Chuck

The Duna OS04 Chuck Orthotic 9 sports shoe is a unique athletic shoe with a rear-opening design tailored for individuals using Ankle-Foot Orthoses (AFOs). This shoe features a rear entry system that allows easy fitting of the foot and AFO by folding down the back of the shoe. The rear flap is secured using the BOA closure system, enabling swift fastening with a simple turn of a small wheel. The BOA mechanism permits effortless one-handed operation while ensuring consistent tension across the foot and orthosis, ensuring a secure fit. With a wide EVA sole providing stability and torsional rigidity, and a strategically placed rolling point offering guidance and orthosis support. The adjustable EVA outsole is a groundbreaking feature, allowing customization for enhanced walking dynamics. The Duna OS04 Chuck Orthotic 9 sports shoe presents a practical and adaptable solution for AFO wearers.

Category:	Footwear for AFO’s > Shoes / Mary-Janes
Height:	At the ankle
Counter support:	Medium +
Sole stiffness:	Medium
Weight:	Light
Upper materials:	Nubuck leather and textile
Lining:	Natural leather
Sole:	EVA, easy to modify if required
Innersole:	Footbed constructed flat suitable for orthotics
Fastening:	BOA fastening – on lateral side of shoe
Other features:	Rear opening, longer stiffeners, generally not suitable for unilateral AFO users, consider suitability of location of BOA fastening
Size range:	Stocked range: not stocked Available to order: size 20-42 with flat innersole
Width fitting:	Orthotic 9, see Duna size chart for details.
Split pairs:	Split pairs in size and width available to order, surcharge applies
Colour customisation:	Custom colours available to order, surcharge applies
Delivery time frame:	For out of stock or backordered items allow 4-5 weeks
Country of Origin	Italy

(DUNOS04CHUC)

Duna Size Chart

Ensure that you follow this link to find out How to measure feet and for a Guide to Choosing the Right Size Shoe.

Please note:

Duna has a number of size charts so please consult the size chart for the model you are ordering.
Duna footwear requires more measurements to be taken to select the correct size. See the size chart and foot diagrams, on where to take the measurements, below.

Size	Orthotic 9 "Wheel"
	E Length	F Width	A C/Ffoot	B C/Mfoot	C C/Heel
20	13.50	5.75	16.70	17.50	23.00
21	14.15	5.90	14.15	5.90	17.15
22	14.80	6.05	17.65	18.50	24.50
23	15.45	6.20	15.45	6.20	18.10
24	16.10	6.35	18.60	19.50	26.10
25	16.75	6.55	16.75	6.55	19.05
26	17.40	6.70	19.50	20.50	27.60
27	18.05	6.85	18.05	6.85	20.00
28	18.70	7.00	20.45	21.50	29.10
29	19.35	7.15	19.35	7.15	20.90
30	20.00	7.35	21.40	22.50	30.70
31	20.65	7.50	20.65	7.50	21.85
32	21.35	7.65	22.35	23.50	32.20
33	22.05	7.80	22.05	7.80	22.80
34	22.70	8.00	23.25	24.50	33.80
35	23.35	8.15	23.35	8.15	23.75
36	24.00	8.30	24.20	25.50	35.30
37	24.65	8.45	24.65	8.45	24.65
38	25.30	8.60	25.15	26.50	36.80
39	25.95	8.80	25.95	8.80	25.60
40	26.60	8.95	26.10	27.50	38.40
41	27.30	9.10	27.30	9.10	26.55
42	28.00	9.25	27.00	28.50	39.90
43	28.65	9.40	28.65	9.40	27.50
44	29.30	9.60	27.95	29.50	41.50
45	29.95	9.75	29.95	9.75	28.40
46	30.60	9.90	28.90	30.50	43.00