Sole for footwear for unstable surfaces

The ornamental design for a sole for footwear for unstable surfaces, as shown and described.

FIG. 1 shows a top perspective view of a sole for footwear for unstable surfaces incorporating the new, original and ornamental design; and,

FIG. 2 shows a bottom perspective view thereof.

The broken lines in the drawings are included for the purpose of illustrating environmental structure that forms no part of the claimed design.

Patent	Priority	Assignee	Title
1011460,
2128134,
2434770,
2468886,
3251144,
3494055,
5598645,	Jan 02 1992	Adidas AB	Shoe sole, in particular for sports shoes, with inflatable tube elements
5987780,	Mar 30 1994	UBATUBA, LLC	Shoe sole including a peripherally-disposed cushioning bladder
8333024,	Oct 08 2008	NIKE, Inc	Article of footwear for dancing
D349808,	Sep 01 1993	Nike, Inc.	Bladder element for a shoe sole
D370116,	Mar 30 1994	Nike, Inc.	Peripheral bladder for a shoe sole
D391045,	Jan 08 1997	Andre Assous, Inc.	Shoe sole
D472038,	Apr 02 2002	EARTH IPCO LLC; TERRA SHOES, LLC	Shoe sole
D485424,	Feb 01 2002	FOOT STEPS ORTHOTICS PTY LIMITED OF C O SHEDDEN GREEN CHARTERED ACCOUNTANTS	Section of an orthotic insert
D489880,	Oct 07 2003	Columbia Insurance Company	Outsole
D494749,	Jun 25 2003	Columbia Insurance Company	Outsole
D596834,	Apr 24 2006	Kabushiki Kaisha Montbell	Sandal
D599994,	Oct 13 2006	PAYLESS SHOESOURCE WORLDWIDE, LLC	Supportive elastic insert for a shoe
D606292,	Dec 13 2005		Shoe sole
D611688,	Jul 11 2008	SALOMON S A S	Footwear

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